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media: i2c: st-mipid02: correct format propagation

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Use a copy of the struct v4l2_subdev_format when propagating
format from the sink to source pad in order to avoid impacting the
sink format returned to the application.

Thanks to Jacopo Mondi for pointing the issue.

Fixes: 6c01e6f3f2 ("media: st-mipid02: Propagate format from sink to source pad")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Cc: stable@vger.kernel.org
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Alain Volmat 2023-11-13 15:57:30 +01:00 committed by Hans Verkuil
parent c9e3e84963
commit b33cb0cbe2
1 changed files with 7 additions and 2 deletions
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9
drivers/media/i2c/st-mipid02.c
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@ -769,6 +769,7 @@ static void mipid02_set_fmt_sink(struct v4l2_subdev *sd,
struct v4l2_subdev_format *format)
{
struct mipid02_dev *bridge = to_mipid02_dev(sd);
struct v4l2_subdev_format source_fmt;
struct v4l2_mbus_framefmt *fmt;
format->format.code = get_fmt_code(format->format.code);
@ -780,8 +781,12 @@ static void mipid02_set_fmt_sink(struct v4l2_subdev *sd,
*fmt = format->format;
/* Propagate the format change to the source pad */
mipid02_set_fmt_source(sd, sd_state, format);
/*
* Propagate the format change to the source pad, taking
* care not to update the format pointer given back to user
*/
source_fmt = *format;
mipid02_set_fmt_source(sd, sd_state, &source_fmt);
}
static int mipid02_set_fmt(struct v4l2_subdev *sd,