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usb: gadget: function: printer: use list_move instead of list_del/list_add

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Using list_move() instead of list_del() + list_add().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/20210609070612.1325044-1-libaokun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Baokun Li 2021-06-09 15:06:12 +08:00 committed by Greg Kroah-Hartman
parent 2a04276781
commit 307462a6f5
1 changed files with 1 additions and 2 deletions
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3
drivers/usb/gadget/function/f_printer.c
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@ -667,8 +667,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
value = usb_ep_queue(dev->in_ep, req, GFP_ATOMIC);
spin_lock(&dev->lock);
if (value) {
list_del(&req->list);
list_add(&req->list, &dev->tx_reqs);
list_move(&req->list, &dev->tx_reqs);
spin_unlock_irqrestore(&dev->lock, flags);
mutex_unlock(&dev->lock_printer_io);
return -EAGAIN;