| Message ID | 20231207120912.270716-2-sakari.ailus@linux.intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Old non-MC-aware drivers have no sub-device state | expand |
Hi Sakari, Thank you for the patch. On Thu, Dec 07, 2023 at 02:09:07PM +0200, Sakari Ailus wrote: > For the purpose of setting old non-pad based sub-device try format as a > basis for VIDIOC_TRY_FMT implementation, there is no need to set the > format in the sub-device state. Drop the assignment to the state, which > would result in a NULL pointer dereference. > > Fixes: fd17e3a9a788 ("media: i2c: Use accessors for pad config 'try_*' fields") > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> > --- > drivers/media/i2c/saa6752hs.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/media/i2c/saa6752hs.c b/drivers/media/i2c/saa6752hs.c > index 51b62a97946a..897eaa669b86 100644 > --- a/drivers/media/i2c/saa6752hs.c > +++ b/drivers/media/i2c/saa6752hs.c > @@ -594,10 +594,8 @@ static int saa6752hs_set_fmt(struct v4l2_subdev *sd, > f->field = V4L2_FIELD_INTERLACED; > f->colorspace = V4L2_COLORSPACE_SMPTE170M; > > - if (format->which == V4L2_SUBDEV_FORMAT_TRY) { > - *v4l2_subdev_state_get_format(sd_state, 0) = *f; > + if (format->which == V4L2_SUBDEV_FORMAT_TRY) > return 0; > - } > > /* > FIXME: translate and round width/height into EMPRESS
diff --git a/drivers/media/i2c/saa6752hs.c b/drivers/media/i2c/saa6752hs.c index 51b62a97946a..897eaa669b86 100644 --- a/drivers/media/i2c/saa6752hs.c +++ b/drivers/media/i2c/saa6752hs.c @@ -594,10 +594,8 @@ static int saa6752hs_set_fmt(struct v4l2_subdev *sd, f->field = V4L2_FIELD_INTERLACED; f->colorspace = V4L2_COLORSPACE_SMPTE170M; - if (format->which == V4L2_SUBDEV_FORMAT_TRY) { - *v4l2_subdev_state_get_format(sd_state, 0) = *f; + if (format->which == V4L2_SUBDEV_FORMAT_TRY) return 0; - } /* FIXME: translate and round width/height into EMPRESS
For the purpose of setting old non-pad based sub-device try format as a basis for VIDIOC_TRY_FMT implementation, there is no need to set the format in the sub-device state. Drop the assignment to the state, which would result in a NULL pointer dereference. Fixes: fd17e3a9a788 ("media: i2c: Use accessors for pad config 'try_*' fields") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> --- drivers/media/i2c/saa6752hs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)