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ALSA: usb-audio: endpoint : remove needless check before usb_free_coherent() 

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/20200727025208.8739-1-vulab@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Xu Wang 2020-07-27 02:52:08 +00:00 committed by Takashi Iwai
parent 9ab0cb309e
commit 2e5a8e1527
1 changed files with 2 additions and 3 deletions
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5
sound/usb/endpoint.c
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@ -615,9 +615,8 @@ static void release_urbs(struct snd_usb_endpoint *ep, int force)
for (i = 0; i < ep->nurbs; i++)
release_urb_ctx(&ep->urb[i]);
if (ep->syncbuf)
usb_free_coherent(ep->chip->dev, SYNC_URBS * 4,
ep->syncbuf, ep->sync_dma);
usb_free_coherent(ep->chip->dev, SYNC_URBS * 4,
ep->syncbuf, ep->sync_dma);
ep->syncbuf = NULL;
ep->nurbs = 0;