Re: [PATCH v3] i2c: ocores: add missing unwind goto in `ocores_i2c_probe`

From: Dan Carpenter
Date: Tue Apr 18 2023 - 01:45:30 EST


On Tue, Apr 18, 2023 at 01:38:13PM +0800, Wang Zhang wrote:
> Smatch Warns:
> drivers/i2c/busses/i2c-ocores.c:701 ocores_i2c_probe() warn:
> missing unwind goto?
>
> The error handling code after the err_clk label should be executed to
> release any resources that were allocated for the clock if a negative
> error code returned after platform_get_irq_optional.
>
> Fix this by changing the direct return to `goto err_clk`.
>
> Signed-off-by: Wang Zhang <silver_code@xxxxxxxxxxx>
> ---
> v2->v3: the first patch had issues. Just do a much simpler fix. No need
> to add the check. clk_disable_unprepare() has checks for error pointer
> and NULL already.
> v1->v2: change `ocores_i2c_of_probe` to use `devm_clk_get_enabled()`

I meant send it to the public mailing list. Don't add the other
comments which are related to discussions on this list. Just say that
the public 1 was buggy and the this new v2 patch is simpler.

regards,
dan carpenter