This code doesn't check for NULL consistently and it generates a Smatch
warning:
drivers/media/i2c/sr030pc30.c:575 sr030pc30_base_config()
error: we previously assumed 'info->pdata' could be null (see line 572)
Fortunately, "info->pdata" can't be NULL to that check can be removed.
The other thing is that if "ret" is an error code here, then we don't
want to do the next call to cam_i2c_write(), so actually let's flip that
test around and return the error. This is more of a theoretical issue
than something which is likely to affect real life.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
v2: just remove the check
Thanks Sakari Ailus for your review.
diff --git a/drivers/media/i2c/sr030pc30.c b/drivers/media/i2c/sr030pc30.c
index 2a4882cddc51..66d952624731 100644
--- a/drivers/media/i2c/sr030pc30.c
+++ b/drivers/media/i2c/sr030pc30.c
@@ -569,7 +569,7 @@ static int sr030pc30_base_config(struct v4l2_subdev *sd)
if (!ret)
ret = sr030pc30_pwr_ctrl(sd, false, false);
- if (!ret && !info->pdata)
+ if (ret)
return ret;
expmin = EXPOS_MIN_MS * info->pdata->clk_rate / (8 * 1000);
