Javier Martinez Canillas 76ca0824af [media] exynos-gsc: cleanup m2m src and dst vb2 queues on STREAMOFF ... Media drivers that use the videobuf2 framework have to give back to vb2 all the buffers that received from vb2 using its .buf_queue callback. But the exynos-gsc driver isn't doing a proper cleanup so vb2 complains that the number of buffers enqueued and received are not balanced: WARNING: CPU: 2 PID: 660 at drivers/media/v4l2-core/videobuf2-core.c:1654 __vb2_queue_cancel+0xec/0x150 [videobuf2_core] Modules linked in: mwifiex_sdio mwifiex uvcvideo exynos_gsc videobuf2_vmalloc s5p_mfc s5p_jpeg CPU: 2 PID: 660 Comm: lt-gst-validate Not tainted 4.8.0 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) [<c010e24c>] (unwind_backtrace) from [<c010af30>] (show_stack+0x10/0x14) [<c010af30>] (show_stack) from [<c03291a4>] (dump_stack+0x88/0x9c) [<c03291a4>] (dump_stack) from [<c011a858>] (__warn+0xe8/0x100) [<c011a858>] (__warn) from [<c011a920>] (warn_slowpath_null+0x20/0x28) [<c011a920>] (warn_slowpath_null) from [<bf0b6ed0>] (__vb2_queue_cancel+0xec/0x150 [videobuf2_core]) [<bf0b6ed0>] (__vb2_queue_cancel [videobuf2_core]) from [<bf0b7464>] (vb2_core_streamoff+0x34/0x9c [videobuf2_core]) [<bf0b7464>] (vb2_core_streamoff [videobuf2_core]) from [<bf11b9e8>] (v4l2_m2m_streamoff+0x2c/0xe4 [v4l2_mem2mem]) [<bf11b9e8>] (v4l2_m2m_streamoff [v4l2_mem2mem]) from [<bf01b84c>] (__video_do_ioctl+0x298/0x30c [videodev]) [<bf01b84c>] (__video_do_ioctl [videodev]) from [<bf01b234>] (video_usercopy+0x174/0x4e8 [videodev]) [<bf01b234>] (video_usercopy [videodev]) from [<bf0165c8>] (v4l2_ioctl+0xc4/0xd8 [videodev]) [<bf0165c8>] (v4l2_ioctl [videodev]) from [<c01f291c>] (do_vfs_ioctl+0x9c/0x8f4) [<c01f291c>] (do_vfs_ioctl) from [<c01f31a8>] (SyS_ioctl+0x34/0x5c) [<c01f31a8>] (SyS_ioctl) from [<c01078c0>] (ret_fast_syscall+0x0/0x3c) Fix this by passing back to vb2 all the received buffers that were not processed. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>		2016-11-16 16:29:17 -02:00
..
gsc-core.c	[media] exynos-gsc: do proper bytesperline and sizeimage calculation	2016-11-16 16:27:52 -02:00
gsc-core.h	[media] vb2: replace void *alloc_ctxs by struct device *alloc_devs	2016-07-08 14:45:07 -03:00
gsc-m2m.c	[media] exynos-gsc: cleanup m2m src and dst vb2 queues on STREAMOFF	2016-11-16 16:29:17 -02:00
gsc-regs.c	[media] gsc: Use %pad for dma_addr_t	2014-08-26 18:52:04 -03:00
gsc-regs.h	[media] exynos-gsc: Fix settings for input and output image RGB type	2012-11-26 18:43:14 -02:00
Makefile	[media] exynos-gsc: Add missing Makefile	2012-09-15 15:09:34 -03:00