Hi Hugues, On Thu, Mar 08, 2018 at 04:07:14PM +0100, Hugues Fruchet wrote: > Driver must reject frame interval enumeration of unsupported resolution. > This was detected by v4l2-compliance format ioctl test: > v4l2-compliance Format ioctls: > info: found 2 frameintervals for pixel format 4745504a and size 176x144 > fail: v4l2-test-formats.cpp(123): > found frame intervals for invalid size 177x144 > test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL > > Signed-off-by: Hugues Fruchet <hugues.fruchet@xxxxxx> > --- > version 2: > - revisit patch according to Mauro comments: > See https://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg127380.html > > drivers/media/i2c/ov5640.c | 16 +++++++++++++--- > 1 file changed, 13 insertions(+), 3 deletions(-) > > diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c > index 676f635..5c08124 100644 > --- a/drivers/media/i2c/ov5640.c > +++ b/drivers/media/i2c/ov5640.c > @@ -1397,8 +1397,12 @@ static int ov5640_set_virtual_channel(struct ov5640_dev *sensor) > break; > } > > - if (nearest && i < 0) > + if (i < 0) { > + /* no match */ > + if (!nearest) > + return NULL; > mode = &ov5640_mode_data[fr][0]; I looked at the ov5640_find_mode() and its implementation is somewhat different from what many other drivers use. Could you switch to v4l2_find_nearest_size() instead? There was a problem in my earlier pull request to Mauro but that should be going in as it was intended Very Soon now. <URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=v4l2-common-size2> If you need additional checks, you could put them to enum_frame_interval itself. What do you think? > + } > > return mode; > } > @@ -2381,8 +2385,14 @@ static int ov5640_s_frame_interval(struct v4l2_subdev *sd, > > sensor->current_fr = frame_rate; > sensor->frame_interval = fi->interval; > - sensor->current_mode = ov5640_find_mode(sensor, frame_rate, mode->width, > - mode->height, true); > + mode = ov5640_find_mode(sensor, frame_rate, mode->width, > + mode->height, true); > + if (!mode) { > + ret = -EINVAL; > + goto out; > + } > + > + sensor->current_mode = mode; > sensor->pending_mode_change = true; > out: > mutex_unlock(&sensor->lock); -- Kind regards, Sakari Ailus e-mail: sakari.ailus@xxxxxx
