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| author | Peilin Ye <yepeilin.cs@gmail.com> | 2020-08-21 17:13:43 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-08-26 18:51:34 +0200 |
| commit | 45c2044ccbedd48bc2a8cddde9ce7e82f03d588c (patch) | |
| tree | ea7298df251c6cd3bec5e2a016093787b2c4a73b /include/media/tpg | |
| parent | e3158a5e7e661786b3ab650c7e4d21024e8eff0f (diff) | |
| download | linux-45c2044ccbedd48bc2a8cddde9ce7e82f03d588c.tar.bz2 | |
media: v4l2-tpg: Clamp hue in tpg_s_hue()
Setting `hue` by calling tpg_s_hue() directly is risky, since it does not
perform range check. Clamp `hue` to the valid range in tpg_s_hue().
Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include/media/tpg')
| -rw-r--r-- | include/media/tpg/v4l2-tpg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/media/tpg/v4l2-tpg.h b/include/media/tpg/v4l2-tpg.h index 0b0ddb87380e..181dcbe777f3 100644 --- a/include/media/tpg/v4l2-tpg.h +++ b/include/media/tpg/v4l2-tpg.h @@ -325,6 +325,7 @@ static inline void tpg_s_saturation(struct tpg_data *tpg, static inline void tpg_s_hue(struct tpg_data *tpg, s16 hue) { + hue = clamp_t(s16, hue, -128, 128); if (tpg->hue == hue) return; tpg->hue = hue; |