linux-kernel - Re: [PATCH] isdn: hisax: l3dss1.c: Fix for possible null pointer dereference

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Message-ID: <537B493B.8020008@cogentembedded.com>
Date:	Tue, 20 May 2014 16:23:23 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
CC:	Karsten Keil <isdn@...ux-pingi.de>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] isdn: hisax: l3dss1.c: Fix for possible null pointer
 dereference

Hello.

On 20-05-2014 1:56, Rickard Strandqvist wrote:

> Hi  Sergei

> I did not put the assignment in the if statement.

    You didn't but you changed the line it's on (which wasn't required BTW).

> Is it meant for me
> to change all the code around the parts I fix?

    No, the patch just needs to be checkpatch.pl-clean.

> There are many assignments in if in the l3dss1_cmd_global() funktion.

    You can leave them alone for now. You can also leave alone the line I was 
referring to.

> It's late and I'm tired, but I still can not see which of these pairs
> of features that I can remove ...?

>              if (ic->parm.dss1_io.timeout > 0) {
>                  if (!(pc = dss1_new_l3_process(st, -1))) {
>                      free_invoke_id(st, id);
>                      return (-2);
>                  }
>                  pc->prot.dss1.ll_id = ic->parm.dss1_io.ll_id; /* remember id */
>                  pc->prot.dss1.proc = ic->parm.dss1_io.proc; /* and procedure */
>              }

    I didn't quite get the question, if you were asking me.

> Best regards
> Rickard Strandqvist

WBR, Sergei

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