linux-kernel - [ 44/77] media: cx18/ivtv: fix regression: remove _

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Date:	Fri,  1 Mar 2013 11:44:29 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Hans Verkuil <hans.verkuil@...co.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: [ 44/77] media: cx18/ivtv: fix regression: remove __init from a non-init function

3.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hans Verkuil <hans.verkuil@...co.com>

commit cfb046cb800ba306b211fbbe4ac633486e11055f upstream.

Commits 5e6e81b2890db3969527772a8350825a85c22d5c (cx18) and
2aebbf6737212265b917ed27c875c59d3037110a (ivtv) added an __init
annotation to the cx18-alsa-load and ivtv-alsa-load functions. However,
these functions are called *after* initialization by the main cx18/ivtv
driver. By that time the memory containing those functions is already
freed and your machine goes BOOM.

Signed-off-by: Hans Verkuil <hans.verkuil@...co.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/media/pci/cx18/cx18-alsa-main.c |    2 +-
 drivers/media/pci/cx18/cx18-alsa-pcm.h  |    2 +-
 drivers/media/pci/ivtv/ivtv-alsa-main.c |    2 +-
 drivers/media/pci/ivtv/ivtv-alsa-pcm.h  |    2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/media/pci/cx18/cx18-alsa-main.c
+++ b/drivers/media/pci/cx18/cx18-alsa-main.c
@@ -197,7 +197,7 @@ err_exit:
 	return ret;
 }
 
-static int __init cx18_alsa_load(struct cx18 *cx)
+static int cx18_alsa_load(struct cx18 *cx)
 {
 	struct v4l2_device *v4l2_dev = &cx->v4l2_dev;
 	struct cx18_stream *s;
--- a/drivers/media/pci/cx18/cx18-alsa-pcm.h
+++ b/drivers/media/pci/cx18/cx18-alsa-pcm.h
@@ -20,7 +20,7 @@
  *  02111-1307  USA
  */
 
-int __init snd_cx18_pcm_create(struct snd_cx18_card *cxsc);
+int snd_cx18_pcm_create(struct snd_cx18_card *cxsc);
 
 /* Used by cx18-mailbox to announce the PCM data to the module */
 void cx18_alsa_announce_pcm_data(struct snd_cx18_card *card, u8 *pcm_data,
--- a/drivers/media/pci/ivtv/ivtv-alsa-main.c
+++ b/drivers/media/pci/ivtv/ivtv-alsa-main.c
@@ -205,7 +205,7 @@ err_exit:
 	return ret;
 }
 
-static int __init ivtv_alsa_load(struct ivtv *itv)
+static int ivtv_alsa_load(struct ivtv *itv)
 {
 	struct v4l2_device *v4l2_dev = &itv->v4l2_dev;
 	struct ivtv_stream *s;
--- a/drivers/media/pci/ivtv/ivtv-alsa-pcm.h
+++ b/drivers/media/pci/ivtv/ivtv-alsa-pcm.h
@@ -20,4 +20,4 @@
  *  02111-1307  USA
  */
 
-int __init snd_ivtv_pcm_create(struct snd_ivtv_card *itvsc);
+int snd_ivtv_pcm_create(struct snd_ivtv_card *itvsc);


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