Re: [PATCH] rsi: fix potential null dereference in rsi_probe()

From: Johan Hovold
Date: Fri Oct 04 2019 - 10:49:24 EST


On Fri, Oct 04, 2019 at 01:47:36PM +0000, Kalle Valo wrote:
> Denis Efremov <efremov@xxxxxxxxx> wrote:
>
> > The id pointer can be NULL in rsi_probe().

While the existing code in rsi_probe() may lead you to believe that,
this statement is false.

> > It is checked everywhere except
> > for the else branch in the idProduct condition. The patch adds NULL check
> > before the id dereference in the rsi_dbg() call.
> >
> > Fixes: 54fdb318c111 ("rsi: add new device model for 9116")
> > Cc: Amitkumar Karwar <amitkarwar@xxxxxxxxx>
> > Cc: Siva Rebbagondla <siva8118@xxxxxxxxx>
> > Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
> > Signed-off-by: Denis Efremov <efremov@xxxxxxxxx>
>
> Patch applied to wireless-drivers-next.git, thanks.
>
> f170d44bc4ec rsi: fix potential null dereference in rsi_probe()

I just sent a revert to prevent the confusion from spreading (e.g. to
stable autosel and contributers looking for things to work on). Hope you
don't mind, Kalle.

Johan