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>

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 9bea7d3..c41ce98 100644 (file)
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -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;