[media] s5p-fimc: Add missing FIMC-LITE file operations locking
commit 5126f259 "v4l2-dev: add flag to have the core lock all file operations" introduced an additional bit flag (V4L2_FL_LOCK_ALL_FOPS) that should be set by drivers that use the v4l2 core lock for all file operations. Since this driver has been merged at the same time as the core changes it doesn't set this flags and thus its all file operations except IOCTL are not properly serialized. Fix this by adding file ops locking in the driver. Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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