diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2018-02-12 14:45:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-24 10:36:25 +0300 |
| commit | 2fb28b075f80136b17c8aebb2c006a3502c628db (patch) | |
| tree | 7796a686d21b7d604778f62bbfce0fd0ffef5728 /drivers/media | |
| parent | 9864a1ef86791897b0f6c215001deae472c05635 (diff) | |
| download | linux-2fb28b075f80136b17c8aebb2c006a3502c628db.tar.xz | |
media: vivid: check if the cec_adapter is valid
commit ed356f110403f6acc64dcbbbfdc38662ab9b06c2 upstream.
If CEC is not enabled for the vivid driver, then the adap pointer is NULL
and 'adap->phys_addr' will fail.
Cc: <stable@vger.kernel.org> # for v4.12 and up
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/vivid/vivid-vid-common.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c index f0f423c7ca41..6f6d4df1e8a8 100644 --- a/drivers/media/platform/vivid/vivid-vid-common.c +++ b/drivers/media/platform/vivid/vivid-vid-common.c @@ -858,7 +858,8 @@ int vidioc_g_edid(struct file *file, void *_fh, return -EINVAL; if (edid->start_block + edid->blocks > dev->edid_blocks) edid->blocks = dev->edid_blocks - edid->start_block; - cec_set_edid_phys_addr(dev->edid, dev->edid_blocks * 128, adap->phys_addr); + if (adap) + cec_set_edid_phys_addr(dev->edid, dev->edid_blocks * 128, adap->phys_addr); memcpy(edid->edid, dev->edid + edid->start_block * 128, edid->blocks * 128); return 0; } |