Re: [PATCH] staging: vt6655: wmgr.c: Fix for possible null pointer dereference

From: Joe Perches
Date: Sun Dec 14 2014 - 17:53:02 EST


On Sun, 2014-12-14 at 23:42 +0100, Rickard Strandqvist wrote:
> There is otherwise a risk of a possible null pointer dereference.
> Was largely found by using a static code analysis program called cppcheck.
[]
> diff --git a/drivers/staging/vt6655/wmgr.c b/drivers/staging/vt6655/wmgr.c
[]
> @@ -4391,7 +4391,7 @@ bAdd_PMKID_Candidate(
> unsigned int ii = 0;
>
> pr_debug("bAdd_PMKID_Candidate START: (%d)\n",
> - (int)pDevice->gsPMKIDCandidate.NumCandidates);
> + (int)(pDevice ? pDevice->gsPMKIDCandidate.NumCandidates : 0));

This is a function tracing printk.
I think it's better to just remove it.



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/