diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2015-03-05 11:15:30 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-05-01 13:40:37 +0300 |
| commit | b8cc79fd83b09fb3137fe3721bc4e161cec54ead (patch) | |
| tree | 44145c41524212204b32b1846bea6eb8cf718a96 /drivers/media/i2c/ov7670.c | |
| parent | 5a878f97fd8487b24f1328b75cfda069dc28f99b (diff) | |
| download | linux-b8cc79fd83b09fb3137fe3721bc4e161cec54ead.tar.xz | |
[media] ov7670: check for valid width/height in ov7670_enum_frame_interval
The width and height should be checked in the enum_frame_interval
op. This fixes a v4l2-compliance failure.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/i2c/ov7670.c')
| -rw-r--r-- | drivers/media/i2c/ov7670.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c index f2fe20aad274..d16bd81e669d 100644 --- a/drivers/media/i2c/ov7670.c +++ b/drivers/media/i2c/ov7670.c @@ -1073,10 +1073,33 @@ static int ov7670_enum_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_interval_enum *fie) { + struct ov7670_info *info = to_state(sd); + unsigned int n_win_sizes = info->devtype->n_win_sizes; + int i; + if (fie->pad) return -EINVAL; if (fie->index >= ARRAY_SIZE(ov7670_frame_rates)) return -EINVAL; + + /* + * Check if the width/height is valid. + * + * If a minimum width/height was requested, filter out the capture + * windows that fall outside that. + */ + for (i = 0; i < n_win_sizes; i++) { + struct ov7670_win_size *win = &info->devtype->win_sizes[i]; + + if (info->min_width && win->width < info->min_width) + continue; + if (info->min_height && win->height < info->min_height) + continue; + if (fie->width == win->width && fie->height == win->height) + break; + } + if (i == n_win_sizes) + return -EINVAL; fie->interval.numerator = 1; fie->interval.denominator = ov7670_frame_rates[fie->index]; return 0; |