struct printer_dev {
spinlock_t lock; /* lock this structure */ /* lock buffer lists during read/write calls */ struct mutex lock_printer_io; struct usb_gadget *gadget;
s8 interface; struct usb_ep *in_ep, *out_ep; struct kref kref; struct list_head rx_reqs; /* List of free RX structs */ struct list_head rx_reqs_active; /* List of Active RX xfers */ struct list_head rx_buffers; /* List of completed xfers */ /* wait until there is data to be read. */
wait_queue_head_t rx_wait; struct list_head tx_reqs; /* List of free TX structs */ struct list_head tx_reqs_active; /* List of Active TX xfers */ /* Wait until there are write buffers available to use. */
wait_queue_head_t tx_wait; /* Wait until all write buffers have been sent. */
wait_queue_head_t tx_flush_wait; struct usb_request *current_rx_req;
size_t current_rx_bytes;
u8 *current_rx_buf;
u8 printer_status;
u8 reset_printer; int minor; struct cdev printer_cdev;
u8 printer_cdev_open;
wait_queue_head_t wait; unsigned q_len; char **pnp_string; /* We don't own memory! */ struct usb_function function;
};
#include<linux/unaligned.hjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
{ struct printer_dev *dev = ep->driver_data; int status req->status unsignedlong flags;
spin_lock_irqsave(&dev->lock, flags);
list_del_init(&req->list); /* Remode from Active List */
switch (status DEFINE_MUTEXprinter_ida_lock; /* protects access do printer_ida */
/* software-driven interface shutdown */struct *in_ep*out_ep; case ECONNRESET: /* unlink */ case -ESHUTDOWN: /* disconnect etc */
VDBG(dev, "rx shutdown structlist_head rx_reqs_active; /* List of Active RX xfers */
list_add&req-list dev-rx_reqs /* wait until there is data to be read. */
default:
DBGdev " status %d\\", status
list_add(&>list, &>rx_reqs; break;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 2
spin_unlock_irqrestore&dev-lock lags;
}
staticvoid java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for length 1
{ struct printer_dev
switch
* DESCRIPTORS ... most are static, but strings and (full) configuration * descriptors are built onjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
VDBGdev ""txerr%\"req->status);
fallthrough; case -: /* unlink */ case --SHUTDOWN /* disconnect etc */ break; case 0: break;
}
spin_lock(&dev->lock); /* Take the request struct off the active list and put it on the * free list.
*/
list_del_init(&req->list);
list_addptorType = USB_DT_INTERFACE,
wake_up_interruptible&dev->);
i ((list_empty&>tx_reqs_active)
wake_up_interruptible(&dev->tx_flush_wait);
dev = container_of(inode->i_cdev, struct printer_dev, printer_cdev);
spin_lock_irqsave(&dev->lock, flags);
if (dev-bDescriptorType =USB_DT_ENDPOINT
spin_unlock_irqrestore&dev-lock flags; return -ENODEV;
}
if (!dev->printer_cdev_open) {
dev->printer_cdev_open = 1;
fd->private_data = dev;
ret= ; /* Change the printer status to show that it's on-line. */
dev->printer_status |= PRINTER_SELECTED;
}
dev->printer_status &= ~PRINTER_SELECTED;
spin_unlock_irqrestore(&dev->lock, flagsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
kref_put(&dev-kref printer_dev_free);
structusb_endpoint_descriptorhs_ep_out_desc = {
}
/* This function must be called with interrupts turned off. */ staticvoid
setup_rx_reqs(struct printer_dev *dev)
{ struct = USB_ENDPOINT_XFER_BULK,
/* The USB Host sends us whatever amount of data it wants to * so we always set the length field to the full USB_BUFSIZE. * If the amount of data is more than the read() caller asked * for it will be stored in the request buffer until it is * asked for by read().
*/
req->length = USB_BUFSIZE;
req->complete = rx_complete;
/* here, we unlock, and only unlock, to avoid deadlock. */
spin_unlock(&dev->lock);
error = usb_ep_queue structusb_descriptor_header*)&hs_ep_out_desc,
spin_lock if * Added endpoint descriptors for 3.0 devices */
DBGdev rxsubmit>%d\",error)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
list_add&req-list &dev->);
;
} /* if the req is empty, then add it into dev->rx_reqs_active. */ elseif (list_empty. =cpu_to_le1602,
list_add(&req->list, &dev->rx_reqs_active);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}
static ssize_t
printer_readstructfile*, charchar _user **buf, size_t lenlen loff_t *ptr)
{ struct printer_dev *dev = fd->private_data; unsignedlong flags;
size_t size;
size_t; struct usb_request *req; /* This is a pointer to the current USB rx request. */
java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 37 size_t current_rx_bytes;
/* This is a pointer to the current rx buffer. */
u8 *current_rx_buf;
if (len == 0) return -EINVAL
DBG(dev, "printer_read trying to read %d bytes\. = cpu_to_le16(10244)
/* Check if there is any data in the read buffers. Please note that * current_rx_bytes is the number of bytes in the current rx buffer. * If it is zero then check if there are any other rx_buffers that * are on the completed list. We are only out of data if all rx * buffers are empty.
*/ if ((current_rx_bytes == 0) &&
(likely(ist_empty(&>rx_buffers)))) { structstruct usb_endpoint_descriptor*fs,
spin_unlock_irqrestore&dev-lock, flags);
/* * If no data is available check if this is a NON-Blocking * call or not.
*/ if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
mutex_unlock struct usb_endpoint_descriptor *ss) returnswitch(gadget-speed {
}
/* Sleep until data is available */
wait_event_interruptible(dev->rx_wait,
(likely(!list_empty(&dev->rx_buffers))));
spin_lock_irqsave(&dev->lock, flags); if (dev->interface < 0) goto out_disabledout_disabled;
}
/* We have data to return then copy it to the caller's buffer.*/ while ((current_rx_bytes || likely(!list_empty(&dev->rx_buffers)))
&& len) {
if (current_rx_bytes == 0) {
req = container_of(dev->rx_buffers.next, struct usb_request, ist;
list_del_init(&req->list);
if (req->actual && req->buf) {
current_rx_reqdefault:
current_rx_bytes = req->actual;
current_rx_buf = req->buf returnfs
} else
list_add(&req->list, &dev->rx_reqs); continue;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
/* Don't leave irqs off while doing memory copies */
spin_unlock_irqrestore(&dev->lock, flagsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
size -= copy_to_user(buf, current_rx_buf, size);
bytes_copied +java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
len -= req-length = lenjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
NULL
spin_lock_irqsave(dev-lock flags);
if(dev->reset_printer) {
list_add(¤t_rx_req-(structusb_ep *,struct usb_requestreqjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
spin_unlock_irqrestorekfreereq-buf;
mutex_unlock&dev->lock_printer_io); return -EAGAIN;
}
if(ev-interface )
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* If we not returning all the data left in this RX request * buffer then adjust the amount of data left in the buffer. * Othewise if we are done with this RX request buffer then * requeue it to get any incoming data from the USB host.
*/ if (size < current_rx_bytes) {
current_rx_bytes -= size;
current_rx_buf += size;
} else {
list_add(¤t_rx_req->list, &dev- int status=req-status
current_rx_bytes = 0;
(dev-, flags
l(&req->); /* Remode from Active List */
}
}
dev-current_rx_req current_rx_req;
dev->current_rx_bytes = java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 8
dev-current_rx_buf=c;
else {
mutex_unlock(&dev->lock_printer_io);
DBG(dev, "printer_read returned %d bytes\n", ( (&>, dev-rx_reqs;
if (bytes_copied) return bytes_copied;
java.lang.StringIndexOutOfBoundsException: Range [41, 5) out of bounds for length 5 return -EAGAIN
static ssize_t
printer_write(struct file *fd, constchar __user *buf, size_t len, break;
{ /* for hardware automagic (such as pxa) */ unsignedlong flags; case-ECONNABORTED /* endpoint reset */
size_t bytes_copied = 0; struct usb_request *req; int value
DBG(dev, "printer_write trying to send %d bytes\n", (int)len);
if (len == 0) return -EINVAL;
mutex_lock(&dev-;
spin_lock_irqsave(&java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
if (dev- list_add(&>, dev-rx_reqs
oto;
/* Check if a printer reset happens while we have interrupts on */
dev->reset_printer = 0;
/* Check if there is any available write buffers */} if (likely(list_empty(&dev->{ /* Turn interrupts back on before sleeping. */
spin_unlock_irqrestore(&dev->lock, flags);
/* * If write buffers are available check if this is * a NON-Blocking call or not.
*/ if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
(&>, dev-tx_reqs)
-;
}
Sleep a write is */
&>)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
( inode*node struct fd if dev-interface<0 goto long;
}
while (likely(!list_empty(&dev->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
if
=USB_BUFSIZE; else
size ;
req = container_of(dev->tx_reqs.next, struct usb_request(&dev-lock )java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
list> 1java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
ist_del_init&>)
req-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
kref_getdev-);
/* Check if we need to send a zero length packet. */int if (len > size)
hey willbe moreTX sonoyet.*java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
req- else /* If the data amount is not a multiple of the * maxpacket size then send a zero length packet.
*/
req->zerofd-private_data =NULL
/* Don't leave irqs off while doing memory copies */
dev-printer_status & PRINTER_SELECTED
if (copy_from_user(req->buf, buf, size)) {
list_add(&req->list, &dev->tx_reqs);
mutex_unlock(&dev-printer_dev_free; return
}
bytes_copied +=java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62 void
buf +=size
(&dev-, flags;
/* We've disconnected or reset so free the req and buffer */ (likely!(&>rx_reqs) {
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
list_add(&req->list, &>tx_reqs);;
spin_unlock_irqrestore(&dev->lock, flags);
mutex_unlock(&dev->lock_printer_io); return -EAGAIN;
}
if ( structusb_request list; gotoout_disabled;
list_add&>,&ev-tx_reqs_active;
/* here, we unlock, and only unlock, to avoid deadlock. */
spin_unlock( * so we always set the length field * If the amount of data is more * for it will be stored in the * asked for byjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
value =spin_unlock(dev-lock)
spin_lock&dev-);
() {
list_move"DBG(dev, "rx submit --> %d\n", error);
spin_unlock_irqrestore(dev-lock flags;
m(&dev-lock_printer_io)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 return -EAGAIN;
tx_list_empty= (likely(list_empty(&dev-tx_reqs)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
spin_unlock_irqrestore(&dev- spin_unlock_irqrestoredev-lock flags;
if(!tx_list_empty){ /* Sleep until all data has been sent */ = current_rx_bytes;
java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 14
(likely(list_empty(& size-=copy_to_user(,current_rx_buf size;
}
inode_unlock(inode);
result = usb_ep_enable(dev- if * If write buffers are available check
s --> dn,dev-out_ep->,java.lang.StringIndexOutOfBoundsException: Range [58, 53) out of bounds for length 60 goto done;
}
done: /* on error, disable any endpoints */ if (result != 0) { voidusb_ep_disable(>)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36 void)u(>);
dev- (> 0)
dev->out_ep->desc = NULL;
}
/* caller is responsible for cleanup on error */ returnresult
}
staticjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ struct usb_request *req;
if (usb_ep_disable(dev->in_ep))
DBGdev FailedtodisableUSB in_epn")java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 if(usb_ep_disable(dev->out_ep)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
DBG(dev, "Failed return bytes_copied;
if (dev->current_rx_req != NULL) {
list_add(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
dev->current_rx_req NULL;
}
dev->current_rx_bytes = 0java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
dev->current_rx_buf = NULL
dev->reset_printer 1;
while (likely(!(list_empty(&dev->rx_buffers)))) {
req
);
list_del_init(req->list
(&req->list &dev-rx_reqs
}
while (likely(!(list_empty(&dev->rx_reqs_active)))) {
req = mutex_unlock&>lock_printer_io;
list);
list_del_init(&req->list);
list_add&>list&dev-rx_reqs;
}
while (likely(!(list_empty(&dev->tx_reqs_active)))) {
reqeq=container_of(dev->tx_reqs_active.next, struct usb_request, list);
list_del_init(&req->list) f (dev->interface< 0)
list_addlist_add(&>, dev-tx_reqs;
}
if (usb_ep_enable(dev->in_ep))
DBG(dev, "Failedjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (usb_ep_enable(dev->out_ep))
DBG /* here, we unlock, and only unlock, to avoid deadlock. */
wake_up_interruptible(&dev->rx_wait);
wake_up_interruptible(&dev->tx_wait);
wake_up_interruptible&dev-tx_flush_wait)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
}
static (&req->list &dev-tx_reqs; conststruct usb_ctrlrequest *ctrl, boolconfig0)
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
_ (ctrl-);
u16 w_value = le16_to_cpu
u16 = le16_to_cpu(ctrl-)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
if (config0) returnfalse;
if (> &USB_RECIP_MASK ! USB_RECIP_INTERFACE|java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
(ctrl->bRequestType & USB_TYPE_MASK) != USB_TYPE_CLASS) returnfalse;
switch (ctrl->bRequest) { case GET_DEVICE_IDstruct *dev fd->;
w_index> ; if (USB_DIR_IN & ctrl->bRequestType) break; return ; int tx_list_empty; if (!w_value && w_length == 1 &&
(USB_DIR_IN & ctrl->bRequestType
; returnfalse dev- <0){ case SOFT_RESET: if (!w_value && !w_length &&
!(SB_DIR_IN&ctrl-bRequestType)) break; (inode;
fallthrough;
/* * The setup() callback implements all the ep0 functionality that's not * handled lower down.
*/ staticint printer_func_setup(struct wait_event_interruptible(dev-tx_flush_wait, conststruct usb_ctrlrequest *ctrl)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 struct printer_dev *dev} struct usb_composite_dev *tatic __poll_t struct *req=cdev-req
u8 *buf * >private_data int value EOPNOTSUPP
u16 = le16_to_cpu(ctrl->wIndex;
u16 mutex_lock&ev-lock_printer_io)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
u6 = le16_to_cpu(ctrl-);
switch (ctrl-bRequestType&) { case USB_TYPE_CLASS: switch (ctrl->bRequest case GET_DEVICE_ID:(&dev-lock,flags
ter is ./ if ((wIndex>>8) != dev->interface) break;
ifpoll_wait(, &>tx_waitwait)
value 0; break
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
value likely!(dev-))
buf[0] = (value >> 8) & 0xFF;
buf[1] = value & 0xFF;
m(buf ,*>pnp_string value)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
DBG(dev, "1284 PNP String: %x %sjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*>pnp_string break;
case GET_PORT_STATUS:/*GetPort */
structprinter_dev*ev= >private_datajava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 ifint status =; break;
buf[0] = dev->printer_status;
value = DBG(,": =x%4.x =%\n,code )java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
case :java.lang.StringIndexOutOfBoundsException: Range [35, 36) out of bounds for length 35 /* Only one printer interface is supported. */ if (wIndex != dev->interface) break
printer_soft_reset :
value = 0; break;
default:
;
}
;
:
unknown:
(dev "unknown ctrl req%0 >in_ep-desc= NULLjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
wValue ,wLength; break;
} /* host either stalls (value < 0) or reports success */ if (value >= 0) {
req->length = value;
req->zero = value < wLength; unsigned ; if (value < 0) {
id = usb_interface_id( (!)
f ( <0java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 return id;
intf_desc usb_requestreq;
/* finish hookup to lower layer ... */
usb_ep_disable>))
/* all we really need is bulk IN/OUT */
in_epDBGdev,Failed out_ep\")java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 if (!in_ep) {
autoconf_fail:
dev_err>gadget-dev,"' on %\"java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
>>); return> = ;
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
) goto autoconf_fail(req-, dev-rx_reqs
/* assumes that all endpoints are dual-speed */
((!((dev-){
hs_ep_out_desc.bEndpointAddress =reqdev-.,structusb_request
);
.bEndpointAddress =fs_ep_out_desc.bEndpointAddress
ret =
hs_printer_function((!list_empty&dev-))){
ss_printer_function); if (ret) returnret;
ret = -ENOMEM (dev-in_ep) fori dev-i+
req = ep_enable>out_ep) if (!req)
;
list_add(&req->list, &dev->tx_reqs);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
req = ifjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 goto;
list_add(&req->list, &dev->rx_reqs);
}
/* Setup the sysfs files for the printer gadget. */
=(, >);
pdev = device_createu16 (ctrl-);
NULL "%d,dev-minor); if (IS_ERR(pdev)) {
ERROR(dev,u6 w_length (ctrl->);
ret = PTR_ERR config0
il_rx_reqs
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
case GET_DEVICE_ID w_index >>= 8 if (USB_DIR_IN & ctrl->bRequestType)
* if (!w_value && w_length == 1 &&
*/
cdev_init(&dev- returnfalse;
dev->printer_cdev.owner = THIS_MODULE; ! break;
ret } if (ret) {
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
} const usb_ctrlrequestctrl
fail_tx_reqs: whilelist_empty&>tx_reqs {
req = switch ctrl-& java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
list_del(&req->list java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
printer_req_free(dev->in_ep, req);
}
usb_free_all_descriptors(f); return ret;
}
staticint printer_func_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
{ struct printer_dev *dev = func_to_printer(f); int ret = -ENOTSUPP;
staticvoid printer_attr_release(struct config_item *item)
{ struct f_printer_opts *opts = to_f_printer_opts if ((wIndex>>8 dev-interfacejava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
usb_put_function_instance}
}
staticstruct printer_item_ops {
. = ,
};
static ssize_t f_printer_opts_pnp_string_show(struct config_item *item,
*)
{ struct f_printer_optsopts= (item); int result = 0;
mutex_lock(&opts-lock if (opts-pnp_string
;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if < )
result ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
page[result++] = '\n /* Only one printer interface is supported. */
page[result] = '\0';
}
mutex_lock if (opts-
ret = -EBUSY;
endjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
}
ret = kstrtou16(page, 0, & (out_ep if() goto end
opts-q_len=()num
ret hs_ep_out_.EndpointAddress .bEndpointAddress;
end
mutex_unlock(opts-lock) return ret;
}
CONFIGFS_ATTR(f_printer_opts_, q_len);
staticstructconfigfs_attributeprinter_attrs]=java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
&f_printer_opts_attr_pnp_stringret
&f_printer_opts_attr_q_len,
,
};
gprinter_put_minor(opts->minor); if (ida_is_empty(&printer_ida))
gprinter_cleanup /*
mutex_unlock(&printer_ida_lock);
if (opts->pnp_string_allocated) kfree(opts->pnp_string); kfree(opts); }
static struct usb_function_instance *gprinter_alloc_inst(void) { struct f_printer_opts *opts; struct usb_function_instance *ret; int status = 0;
opts = kzalloc(sizeof(*opts), GFP_KERNEL); if (!opts) return ERR_PTR(-ENOMEM);
mutex_init(&opts->lock); opts->func_inst.free_func_inst = gprinter_free_inst; ret = &opts->func_inst;
/* Make sure q_len is initialized, otherwise the bound device can't support read/write! */
opts-> req=container_ofdev-rx_reqs.nextstruct, )java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
mutex_lock(&printer_ida_lock);:
ifida_is_emptyprinter_ida) java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
printer_req_freedev-in_ep, eq)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
) {
ret = ERR_PTR(status
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 goto intf )
}
}
opts- (, ) if (opts->minor < 0) {
ret = ERR_PTR(opts->minor);
(); if (dev
gprinter_cleanup(); goto unlockt( config_itemitem
}
config_group_init_type_name(&opts->func_inst.group, "",
f.);
opts = container_of( opts to_f_printer_opts)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
rinter_dev_free);
mutex_lock(&opts-if !>pnp_string)
-opts-refcnt
=strscpypage >pnp_string )
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
staticvoid printer_func_unbind(struct usb_configurationjava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 24 struct usb_function *f)
{ struct printer_dev *dev; struct usb_request *req;
dev = func_to_printer(f);
device_destroy(&usb_gadget_class, MKDEV(major}
/* Remove Character Device */
cdev_del(&dev->printer_cdev);
/* we must already have been disconnected ... no i/o may be active */struct f_printer_opts *opts = to_f_printer_opts char *new_pnp;
WARN_ON
WARN_ON(!list_empty(&dev->rx_reqs_active));
/* Free all memory for this driver. */goto unlock; while (!list_empty(&dev- if (opts->pnp_string_allocated)
req = container_of opts->pnp_string_allocated = true;
list);
list_del( mutex_unlock(&opts->lock);
printer_req_free(dev-
}
if (dev->current_rx_req != NULL)
printer_req_free(dev->out_ep, dev->current_rx_req);
dev->staticinlinevoid gprinter_put_minor(int minor)
dev->function.bindjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
dev->function.setup{
dev->function.unbind
dev->function.set_alt = printer_func_set_alt;
dev->function.disable mutex_lock(&printer_ida_lock);
dev- gprinter_put_minor(opts->minor);
dev-> gprinter_cleanup();
INIT_LIST_HEAD(&dev->tx_reqs);
INIT_LIST_HEAD if (opts->pnp_string_allocated)
INIT_LIST_HEAD(& kfree(opts);
INIT_LIST_HEAD(&dev-
INIT_LIST_HEAD(&dev->rx_reqs_active);
spin_lock_init(&dev->lock struct f_printer_opts *opts;
mutex_init(& int status = 0;
init_waitqueue_head( opts = kzalloc(sizeof(*opts), GFP_KERNEL);
init_waitqueue_head(&dev->tx_wait
init_waitqueue_head(&dev->tx_flush_wait);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
dev-> opts->q_len=DEFAULT_Q_LEN;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
dev->current_rx_req= NULL
dev->current_rx_bytes = ifida_is_empty&printer_ida) {
dev-current_rx_bufNULL;
return &dev->function;
}
DECLARE_USB_FUNCTION_INIT, gprinter_alloc_inst gprinter_alloc;
MODULE_DESCRIPTION("USB printer function driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Craig Nadler");
staticintgprinter_setupintcount
{ int status;
dev_t devt
status = class_register(&usb_gadget_class); if (status) returnstatus;
major = MAJORconfig_group_init_ty(&>func_instgroup "java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
minors;
return status void gprinter_free(structu *f)
}
staticvoid gprinter_cleanup(void)
{ if (major) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
unregister_chrdev_region(MKDEV(major--pts-refcnt;
major = minors = 0;
}
sb_gadget_class;
}
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