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USB: yurex: remove needless check before usb_free_coherent()

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usb_free_coherent() is safe with NULL addr and this check is
not required.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20200810020802.9082-1-vulab@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xu Wang 2020-08-10 02:08:02 +00:00 committed by Greg Kroah-Hartman
parent 1100395dc4
commit 4d671957d4
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/misc/yurex.c
View File

@ -96,15 +96,13 @@ static void yurex_delete(struct kref *kref)
if (dev->cntl_urb) {
usb_kill_urb(dev->cntl_urb);
kfree(dev->cntl_req);
if (dev->cntl_buffer)
usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
dev->cntl_buffer, dev->cntl_urb->transfer_dma);
usb_free_urb(dev->cntl_urb);
}
if (dev->urb) {
usb_kill_urb(dev->urb);
if (dev->int_buffer)
usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
dev->int_buffer, dev->urb->transfer_dma);
usb_free_urb(dev->urb);
}