media: ov13858: Check for possible null pointer

Check for possible null pointer to avoid crash.

Signed-off-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Chiranjeevi Rapolu 2018-10-26 11:34:30 -04:00 committed by Mauro Carvalho Chehab
parent 4361905962
commit 35629182eb

View File

@ -1612,6 +1612,7 @@ static int ov13858_init_controls(struct ov13858 *ov13858)
OV13858_NUM_OF_LINK_FREQS - 1,
0,
link_freq_menu_items);
if (ov13858->link_freq)
ov13858->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
@ -1635,6 +1636,7 @@ static int ov13858_init_controls(struct ov13858 *ov13858)
ov13858->hblank = v4l2_ctrl_new_std(
ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_HBLANK,
hblank, hblank, 1, hblank);
if (ov13858->hblank)
ov13858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
exposure_max = mode->vts_def - 8;