Re: [PATCH] mmc: sdio: fix kernel panic when remove non-standard SDIO card

["欧阳炜钊(Weizhao Ouyang)" <ouyangweizhao@zeku.com>]

2022年10月11日 22:41, Ulf Hansson <ulf.hansson@linaro.org> wrote:
> 
> On Tue, 27 Sept 2022 at 04:04, Weizhao Ouyang <ouyangweizhao@zeku.com>
> wrote:
> >
> > From: Matthew Ma <mahongwei@zeku.com>
> >
> > SDIO tuple is only allocated for standard SDIO card, especially it
> > causes memory corruption issues when the non-standard SDIO card has
> > removed since the card device's reference counter does not increase for
> > it at sdio_init_func(), but all SDIO card device reference counter has
> > decreased at sdio_release_func().
> >
> > Fixes: 1a632f8cdc33 ("sdio: split up common and function CIS parsing")
> > Signed-off-by: Matthew Ma <mahongwei@zeku.com>
> > Reviewed-by: Weizhao Ouyang <ouyangweizhao@zeku.com>
> > Reviewed-by: John Wang <wangdayu@zeku.com>
> 
> Apologize for the delay!
> 
> Wow, that's a very old bug you fixed! However, it looks like the fixed
> commit should be changed to 6f51be3d37df ("sdio: allow non-standard
> SDIO cards").

Thanks, I messed the tag.

> 
> I tried to apply the patch, but the patch format seems to be corrupt.
> Did you use git format-patch and did run ./scripts/checkpatch.pl on
> it?
> 

Yeah I used checkpatch.pl with strict mode to check this patch, and it
has no obvious style problems. What's the format error you got?

Thanks,
Weizhao