media: i2c: mt9t112: fix incorrect PTR_ERR() call on non-error pointer

In mt9t112_probe(), the clock error check after devm_v4l2_sensor_clk_get()
calls PTR_ERR(priv->clk) unconditionally, before testing IS_ERR().

On a successful lookup, priv->clk is a valid pointer and calling PTR_ERR()
on it is incorrect API usage.  While the comparison against -ENOENT happens
to be harmless in practice (valid kernel pointers never fall in the error
range), this is still a violation of the IS_ERR()/PTR_ERR() contract that
can mislead readers.

Restructure the check to guard PTR_ERR() inside IS_ERR(), using the
simpler != -ENOENT form to avoid an unnecessary else clause.

Signed-off-by: Uday Khare <udaykhare77@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This commit is contained in:
Uday Khare 2026-07-20 17:18:31 +05:30 • committed by Sakari Ailus
commit 642f8aa04c