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media: vivid: free bitmap_cap when updating std/timings/etc.

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When vivid_update_format_cap() is called it should free any overlay
bitmap since the compose size will change.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: syzbot+0cc8e3cc63ca373722c6@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>      # for v3.18 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2018-11-09 08:37:44 -05:00 committed by Mauro Carvalho Chehab
parent e5f71a27fa
commit 560ccb75c2
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/vivid/vivid-vid-cap.c
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@ -451,6 +451,8 @@ void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
break;
}
vfree(dev->bitmap_cap);
dev->bitmap_cap = NULL;
vivid_update_quality(dev);
tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
dev->crop_cap = dev->src_rect;