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usb: gadget: uvc: refactor the check for a valid buffer in the pump worker 

[ Upstream commit 5e7ea65daf ]

By toggling the condition check for a valid buffer, the else path
can be completely avoided.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20240214-uvc-gadget-cleanup-v1-2-de6d78780459@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Michael Grzeschik 2024-02-14 00:28:01 +01:00 committed by Greg Kroah-Hartman
parent 598a5ff297
commit f3ad2c92a9
1 changed files with 3 additions and 4 deletions
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7
drivers/usb/gadget/function/uvc_video.c
View File

@ -594,10 +594,7 @@ static void uvcg_video_pump(struct work_struct *work)
*/
spin_lock_irqsave(&queue->irqlock, flags);
buf = uvcg_queue_head(queue);
if (buf != NULL) {
video->encode(req, video, buf);
} else {
if (!buf) {
/*
* Either the queue has been disconnected or no video buffer
* available for bulk transfer. Either way, stop processing
@ -607,6 +604,8 @@ static void uvcg_video_pump(struct work_struct *work)
break;
}
video->encode(req, video, buf);
spin_unlock_irqrestore(&queue->irqlock, flags);
spin_lock_irqsave(&video->req_lock, flags);