token = opal_async_get_token_interruptible(); if (token < 0) {
pr_devel("Failed to get token\n"); return token;
}
ret = mutex_lock_interruptible(&psr_mutex); if (ret) goto out_token;
ret = opal_get_power_shift_ratio(psr_attr->handle, token,
(u32 *)__pa(&psr)); switch (ret) { case OPAL_ASYNC_COMPLETION:
ret = opal_async_wait_response(token, &msg); if (ret) {
pr_devel("Failed to wait for the async response\n");
ret = -EIO; goto out;
}
ret = opal_error_code(opal_get_async_rc(msg)); if (!ret) {
ret = sprintf(buf, "%u\n", be32_to_cpu(psr)); if (ret < 0)
ret = -EIO;
} break; case OPAL_SUCCESS:
ret = sprintf(buf, "%u\n", be32_to_cpu(psr)); if (ret < 0)
ret = -EIO; break; default:
ret = opal_error_code(ret);
}
ret = kstrtoint(buf, 0, &psr); if (ret) return ret;
token = opal_async_get_token_interruptible(); if (token < 0) {
pr_devel("Failed to get token\n"); return token;
}
ret = mutex_lock_interruptible(&psr_mutex); if (ret) goto out_token;
ret = opal_set_power_shift_ratio(psr_attr->handle, token, psr); switch (ret) { case OPAL_ASYNC_COMPLETION:
ret = opal_async_wait_response(token, &msg); if (ret) {
pr_devel("Failed to wait for the async response\n");
ret = -EIO; goto out;
}
ret = opal_error_code(opal_get_async_rc(msg)); if (!ret)
ret = count; break; case OPAL_SUCCESS:
ret = count; break; default:
ret = opal_error_code(ret);
}
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