Re: [PATCH] isa: Remove unnecessary checks

From: Greg Kroah-Hartman
Date: Wed May 31 2023 - 14:03:42 EST


On Thu, May 18, 2023 at 09:46:21PM -0400, William Breathitt Gray wrote:
> On Wed, May 17, 2023 at 03:50:25PM +0300, Vladislav Efanov wrote:
> > The isa_dev->dev.platform_data is initialized with incoming
> > parameter isa_driver. After it isa_dev->dev.platform_data is
> > checked for NULL, but incoming parameter isa_driver is not
> > NULL since it is dereferenced many times before this check.
> >
> > Found by Linux Verification Center (linuxtesting.org) with SVACE.
> >
> > Fixes: a5117ba7da37 ("[PATCH] Driver model: add ISA bus")
> > Signed-off-by: Vladislav Efanov <VEfanov@xxxxxxxxx>
>
> I don't think the Fixes line is needed because this is removing a
> superfluous check rather than fixing a bug. Regardless, here's my Ack
> for Greg as the patch itself makes sense.
>
> Acked-by: William Breathitt Gray <william.gray@xxxxxxxxxx>

Yes, the Fixes line makes no sense at all. I'll delete it when
applying, thanks for the review.

greg k-h