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Date: Sun, 23 Jun 2013 09:45:53 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Raphael S Carvalho <raphael.scarv@...il.com>
Cc: kbuild@...org, Julia Lawall <julia.lawall@...6.fr>,
Liam Girdwood <lrg@...com>,
Peter Ujfalusi <peter.ujfalusi@...com>,
alsa-devel@...a-project.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [kbuild] sound/soc/soc-fw.c:945:9-16: ERROR: se is NULL but
dereferenced.
On Sat, Jun 22, 2013 at 12:35:44PM -0300, Raphael S Carvalho wrote:
> I'm in a Linux event now, and I can't clone the tree (probably the port for
> that purpose isn't allowed)
> Then I sending a simplified patch that shows which lines must be changed.
Patch looks good to me. Thanks!
Reviewed-by: Fengguang Wu <fengguang.wu@...el.com>
> Signed-off: Raphael S. Carvalho <raphael.scarv@...il.com>
>
> --- soc-fw_old.c 2013-06-22 12:13:48.000000000 -0300
> +++ soc-fw_new.c 2013-06-22 12:19:41.000000000 -0300
> @@ -893,7 +893,7 @@
> if (err < 0) {
> dev_err(sfw->dev, "ASoC: could not create"
> " values for %s\n", ec->hdr.name);
> - goto err_se;
> + goto err;
> }
> /* fall through to create texts */
> case SOC_CONTROL_TYPE_ENUM:
> @@ -905,13 +905,13 @@
> if (err < 0) {
> dev_err(sfw->dev, "ASoC: could not create"
> " texts for %s\n", ec->hdr.name);
> - goto err_se;
> + goto err;
> }
> break;
> default:
> dev_err(sfw->dev, "ASoC: invalid enum control type %d for %s\n",
> ec->hdr.index, ec->hdr.name);
> - goto err_se;
> + goto err;
> }
>
> /* map standard io handlers and check for external handlers */
> @@ -928,21 +928,19 @@
> SOC_CONTROL_GET_ID_GET(ec->hdr.index),
> SOC_CONTROL_GET_ID_PUT(ec->hdr.index),
> SOC_CONTROL_GET_ID_INFO(ec->hdr.index));
> - goto err_se;
> + goto err;
> }
>
> err = soc_fw_init_kcontrol(sfw, kc);
> if (err < 0) {
> dev_err(sfw->dev, "ASoC: failed to init %s\n",
> ec->hdr.name);
> - goto err_se;
> + goto err;
> }
> }
> return kc;
>
> -err_se:
> - kfree(kc);
> -
> +err:
> /* free values and texts */
> if (se->dvalues)
> kfree(se->dvalues);
> @@ -950,7 +948,8 @@
> kfree(se->dtexts[i]);
>
> kfree(se);
> -
> +err_se:
> + kfree(kc);
> return NULL;
> }
>
>
>
> On Sat, Jun 22, 2013 at 11:48 AM, Fengguang Wu <fengguang.wu@...el.com>wrote:
>
> > TO: Liam Girdwood <lrg@...com>
> > CC: Peter Ujfalusi <peter.ujfalusi@...com>
> >
> >
> > Hi Liam,
> >
> > FYI, there are coccinelle warnings in
> >
> > tree: git://gitorious.org/omap-audio/linux-audiopeter/topic/ti-audio-next-bnw-wip
> > head: ac1981249f0c606cede98d6dab091ecb1ae480c9
> > commit: 6d98dbbcfb5da2176b3e60faaf86d2279790fe67 ASoC: firmware: Add
> > support for dynamic components
> > date: 5 weeks ago
> > :::::: branch date: 5 days ago
> > :::::: commit date: 5 weeks ago
> >
> > >> sound/soc/soc-fw.c:945:9-16: ERROR: se is NULL but dereferenced.
> > --
> > >> sound/soc/soc-fw.c:1523:8-9: ERROR: reference preceded by free on line
> > 1523
> > >> sound/soc/soc-fw.c:1443:8-9: ERROR: reference preceded by free on line
> > 1443
> > >> sound/soc/soc-fw.c:1483:8-9: ERROR: reference preceded by free on line
> > 1483
> > --
> > >> sound/soc/soc-fw.c:1528:6-8: ERROR: invalid reference to the index
> > variable of the iterator on line 1513
> > >> sound/soc/soc-fw.c:1448:6-8: ERROR: invalid reference to the index
> > variable of the iterator on line 1433
> > >> sound/soc/soc-fw.c:1488:6-8: ERROR: invalid reference to the index
> > variable of the iterator on line 1473
> >
> > git remote add omap-audio git://gitorious.org/omap-audio/linux-audio
> > git remote update omap-audio
> > git checkout 6d98dbbcfb5da2176b3e60faaf86d2279790fe67
> > vim +945 sound/soc/soc-fw.c
> >
> > 6d98dbbc Liam Girdwood 2012-12-05 929 goto
> > err_se;
> > 6d98dbbc Liam Girdwood 2012-12-05 930 }
> > 6d98dbbc Liam Girdwood 2012-12-05 931
> > 6d98dbbc Liam Girdwood 2012-12-05 932 err =
> > soc_fw_init_kcontrol(sfw, kc);
> > 6d98dbbc Liam Girdwood 2012-12-05 933 if (err < 0) {
> > 6d98dbbc Liam Girdwood 2012-12-05 934
> > dev_err(sfw->dev, "ASoC: failed to init %s\n",
> > 6d98dbbc Liam Girdwood 2012-12-05 935
> > ec->hdr.name);
> > 6d98dbbc Liam Girdwood 2012-12-05 936 goto
> > err_se;
> > 6d98dbbc Liam Girdwood 2012-12-05 937 }
> > 6d98dbbc Liam Girdwood 2012-12-05 938 }
> > 6d98dbbc Liam Girdwood 2012-12-05 939 return kc;
> > 6d98dbbc Liam Girdwood 2012-12-05 940
> > 6d98dbbc Liam Girdwood 2012-12-05 941 err_se:
> > 6d98dbbc Liam Girdwood 2012-12-05 942 kfree(kc);
> > 6d98dbbc Liam Girdwood 2012-12-05 943
> > 6d98dbbc Liam Girdwood 2012-12-05 944 /* free values and texts */
> > 6d98dbbc Liam Girdwood 2012-12-05 @945 if (se->dvalues)
> > 6d98dbbc Liam Girdwood 2012-12-05 946 kfree(se->dvalues);
> > 6d98dbbc Liam Girdwood 2012-12-05 947 for (i = 0; i < ec->max;
> > i++)
> > 6d98dbbc Liam Girdwood 2012-12-05 948
> > kfree(se->dtexts[i]);
> > 6d98dbbc Liam Girdwood 2012-12-05 949
> > 6d98dbbc Liam Girdwood 2012-12-05 950 kfree(se);
> > 6d98dbbc Liam Girdwood 2012-12-05 951
> > 6d98dbbc Liam Girdwood 2012-12-05 952 return NULL;
> > 6d98dbbc Liam Girdwood 2012-12-05 953 }
> >
> > ---
> > 0-DAY kernel build testing backend Open Source Technology
> > Center
> > http://lists.01.org/mailman/listinfo/kbuild Intel
> > Corporation
> > _______________________________________________
> > kbuild mailing list
> > kbuild@...ts.01.org
> > https://lists.01.org/mailman/listinfo/kbuild
> >
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