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Subject[PATCH] ALSA: usb-audio: endpoint : remove redundant check before usb_free_coherent()
Date
usb_free_coherent() is safe with NULL addr and this check is
not required.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
---
sound/usb/endpoint.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 8e568823c992..d5ed4ddfd451 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -82,10 +82,9 @@ static inline unsigned get_usb_high_speed_rate(unsigned int rate)
*/
static void release_urb_ctx(struct snd_urb_ctx *u)
{
- if (u->buffer_size)
- usb_free_coherent(u->ep->chip->dev, u->buffer_size,
- u->urb->transfer_buffer,
- u->urb->transfer_dma);
+ usb_free_coherent(u->ep->chip->dev, u->buffer_size,
+ u->urb->transfer_buffer,
+ u->urb->transfer_dma);
usb_free_urb(u->urb);
u->urb = NULL;
}
--
2.17.1
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