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| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2016-06-26 08:09:31 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-09-19 14:46:31 -0300 |
| commit | 34e77ed84b274d20415067306b855bd87f761f5e (patch) | |
| tree | 70982c33f0851c66403cbabcf629cfcea7da2e81 /drivers/media/platform/vsp1/vsp1_entity.h | |
| parent | e4e70a147a48618a36ae1b81c641516cb9d45993 (diff) | |
| download | linux-34e77ed84b274d20415067306b855bd87f761f5e.tar.gz linux-34e77ed84b274d20415067306b855bd87f761f5e.tar.bz2 linux-34e77ed84b274d20415067306b855bd87f761f5e.zip | |
[media] v4l: vsp1: Protect against race conditions between get and set format
The subdev userspace API isn't serialized in the core, serialize access
to formats and selection rectangles in the driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_entity.h')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_entity.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_entity.h b/drivers/media/platform/vsp1/vsp1_entity.h index b43457fd2c43..b5e4dbb1f7d4 100644 --- a/drivers/media/platform/vsp1/vsp1_entity.h +++ b/drivers/media/platform/vsp1/vsp1_entity.h @@ -14,7 +14,7 @@ #define __VSP1_ENTITY_H__ #include <linux/list.h> -#include <linux/spinlock.h> +#include <linux/mutex.h> #include <media/v4l2-subdev.h> @@ -96,6 +96,8 @@ struct vsp1_entity { struct v4l2_subdev subdev; struct v4l2_subdev_pad_config *config; + + struct mutex lock; /* Protects the pad config */ }; static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev) |