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

[Andy Shevchenko]

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).

-- 
With Best Regards,
Andy Shevchenko