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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-28 17:09:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-30 13:41:03 -0300 |
| commit | 747598d5b6d1c825ad34fbf743e38113aaca597f (patch) | |
| tree | 9bccb5e17daae7a6bdad3b3dbd51c617921c5ba5 /drivers/media/usb/go7007/go7007-driver.c | |
| parent | efc0ac5a0e54657f74c2d6e73e146d249116a608 (diff) | |
| download | linux-747598d5b6d1c825ad34fbf743e38113aaca597f.tar.gz linux-747598d5b6d1c825ad34fbf743e38113aaca597f.tar.bz2 linux-747598d5b6d1c825ad34fbf743e38113aaca597f.zip | |
[media] go7007: don't use vb before test if it is not NULL
As reported by smatch:
drivers/media/usb/go7007/go7007-driver.c:452 frame_boundary() warn: variable dereferenced before check 'vb' (see line 449)
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/go7007/go7007-driver.c')
| -rw-r--r-- | drivers/media/usb/go7007/go7007-driver.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/usb/go7007/go7007-driver.c b/drivers/media/usb/go7007/go7007-driver.c index 95cffb771a62..0ab81ec8897a 100644 --- a/drivers/media/usb/go7007/go7007-driver.c +++ b/drivers/media/usb/go7007/go7007-driver.c @@ -446,7 +446,7 @@ static void go7007_motion_regions(struct go7007 *go, struct go7007_buffer *vb) */ static struct go7007_buffer *frame_boundary(struct go7007 *go, struct go7007_buffer *vb) { - u32 *bytesused = &vb->vb.v4l2_planes[0].bytesused; + u32 *bytesused; struct go7007_buffer *vb_tmp = NULL; if (vb == NULL) { @@ -458,6 +458,7 @@ static struct go7007_buffer *frame_boundary(struct go7007 *go, struct go7007_buf go->next_seq++; return vb; } + bytesused = &vb->vb.v4l2_planes[0].bytesused; vb->vb.v4l2_buf.sequence = go->next_seq++; if (vb->modet_active && *bytesused + 216 < GO7007_BUF_SIZE) |