Re: [PATCH 1/2] media: i2c: ds90ub9x3: Fix use of uninitialized variables

[Tomi Valkeinen]

On 03/08/2023 14:57, Andy Shevchenko wrote:
> On Thu, Aug 03, 2023 at 11:41:38AM +0300, Tomi Valkeinen wrote:
> > smatch reports some uninitialized variables:
> >
> > drivers/media/i2c/ds90ub913.c:481 ub913_log_status() error: uninitialized symbol 'v1'.
> > drivers/media/i2c/ds90ub913.c:481 ub913_log_status() error: uninitialized symbol 'v2'.
> > drivers/media/i2c/ds90ub953.c:655 ub953_log_status() error: uninitialized symbol 'gpio_local_data'.
> > drivers/media/i2c/ds90ub953.c:655 ub953_log_status() error: uninitialized symbol 'gpio_input_ctrl'.
> > drivers/media/i2c/ds90ub953.c:655 ub953_log_status() error: uninitialized symbol 'gpio_pin_sts'.
> >
> > These are used only for printing debug information, and the use of an
> > uninitialized variable only happens if an i2c transaction has failed,
> > which will print an error. Thus, fix the errors just by initializing the
> > variables to 0.
> >
> > Fixes: 6363db1c9d45 ("media: i2c: add DS90UB953 driver")
> > Fixes: c158d0d4ff15 ("media: i2c: add DS90UB913 driver")
>
> I would prefer two separate changes on per driver basis. This is a good
> practice to make backporting easier (generally speaking).

Yes, I almost did that, but then somehow got hit by acute laziness... 
I'll send a v2 with split patches.

 Tomi