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media: ov7740: Fix control handler error at the end of control init

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Check that no error happened during adding controls to the driver's
control handler. Print an error message and bail out if there was one.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Sakari Ailus 2018-04-12 06:16:39 -04:00 committed by Mauro Carvalho Chehab
parent bad04a55ab
commit 80a1f95b8a
1 changed files with 7 additions and 0 deletions
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7
drivers/media/i2c/ov7740.c
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@ -1006,6 +1006,13 @@ static int ov7740_init_controls(struct ov7740 *ov7740)
V4L2_EXPOSURE_MANUAL, false);
v4l2_ctrl_cluster(2, &ov7740->hflip);
if (ctrl_hdlr->error) {
ret = ctrl_hdlr->error;
dev_err(&client->dev, "controls initialisation failed (%d)\n",
ret);
goto error;
}
ret = v4l2_ctrl_handler_setup(ctrl_hdlr);
if (ret) {
dev_err(&client->dev, "%s control init failed (%d)\n",