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authorBhupesh Sharma <bhupesh.sharma@st.com>2012-03-22 00:50:37 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-04-10 15:46:02 -0300
commit95faf82bd3ea607f8e1ca78930c49b71078266e6 (patch)
tree325a5529c3c5b4d46dcbaecb3800f844321918ca /drivers/media/video/em28xx
parent7cfce77d779f43299c1cfeddd72462fed596c168 (diff)
[media] usb: gadget/uvc: Remove non-required locking from 'uvc_queue_next_buffer' routine
This patch removes the non-required spinlock acquire/release calls on 'queue_irqlock' from 'uvc_queue_next_buffer' routine. This routine is called from 'video->encode' function (which translates to either 'uvc_video_encode_bulk' or 'uvc_video_encode_isoc') in 'uvc_video.c'. As, the 'video->encode' routines are called with 'queue_irqlock' already held, so acquiring a 'queue_irqlock' again in 'uvc_queue_next_buffer' routine causes a spin lock recursion. Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/em28xx')
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