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| author | Sakari Ailus <sakari.ailus@iki.fi> | 2012-02-15 22:57:22 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-04-10 15:01:49 -0300 |
| commit | 5e6ff7c17bf468b8bc012e49174771e5f718e72c (patch) | |
| tree | b75a7c592122a606bc4a9e74fbea1dc9b5148031 /include/media | |
| parent | c5a766ceb497078459115fcbd1412917083aa4a5 (diff) | |
| download | linux-5e6ff7c17bf468b8bc012e49174771e5f718e72c.tar.bz2 | |
[media] v4l: Check pad number in get try pointer functions
Unify functions to get try pointers and validate the pad number accessed by
the user.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-subdev.h | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index bcaf6b80bb20..7e850355a6f0 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -565,23 +565,19 @@ struct v4l2_subdev_fh { container_of(fh, struct v4l2_subdev_fh, vfh) #if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) -static inline struct v4l2_mbus_framefmt * -v4l2_subdev_get_try_format(struct v4l2_subdev_fh *fh, unsigned int pad) -{ - return &fh->pad[pad].try_fmt; -} - -static inline struct v4l2_rect * -v4l2_subdev_get_try_crop(struct v4l2_subdev_fh *fh, unsigned int pad) -{ - return &fh->pad[pad].try_crop; -} - -static inline struct v4l2_rect * -v4l2_subdev_get_try_compose(struct v4l2_subdev_fh *fh, unsigned int pad) -{ - return &fh->pad[pad].try_compose; -} +#define __V4L2_SUBDEV_MK_GET_TRY(rtype, fun_name, field_name) \ + static inline struct rtype * \ + v4l2_subdev_get_try_##fun_name(struct v4l2_subdev_fh *fh, \ + unsigned int pad) \ + { \ + BUG_ON(unlikely(pad >= vdev_to_v4l2_subdev( \ + fh->vfh.vdev)->entity.num_pads)); \ + return &fh->pad[pad].field_name; \ + } + +__V4L2_SUBDEV_MK_GET_TRY(v4l2_mbus_framefmt, format, try_fmt) +__V4L2_SUBDEV_MK_GET_TRY(v4l2_rect, crop, try_compose) +__V4L2_SUBDEV_MK_GET_TRY(v4l2_rect, compose, try_compose) #endif extern const struct v4l2_file_operations v4l2_subdev_fops; |