[alsa-devel] [PATCH v2 1/2] ALSA: hda - bug fix on return value when getting HDMI ELD info
From: Mengdong Lin mengdong.lin@intel.com
In function snd_hdmi_get_eld(), the variable 'ret' should be initialized to 0. Otherwise it will be returned uninitialized as non-zero after ELD info is got successfully. Thus hdmi_present_sense() will always assume ELD info is invalid by mistake, and /proc file system cannot show the proper ELD info.
Signed-off-by: Mengdong Lin mengdong.lin@intel.com
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 7dd8463..d0d7ac1 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -320,7 +320,7 @@ int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid, unsigned char *buf, int *eld_size) { int i; - int ret; + int ret = 0; int size;
/*
On 03/28/2013 10:20 AM, mengdong.lin@intel.com wrote:
From: Mengdong Lin mengdong.lin@intel.com
In function snd_hdmi_get_eld(), the variable 'ret' should be initialized to 0. Otherwise it will be returned uninitialized as non-zero after ELD info is got successfully. Thus hdmi_present_sense() will always assume ELD info is invalid by mistake, and /proc file system cannot show the proper ELD info.
Signed-off-by: Mengdong Lin mengdong.lin@intel.com
Cc: stable@vger.kernel.org Acked-by: David Henningsson david.henningsson@canonical.com
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 7dd8463..d0d7ac1 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -320,7 +320,7 @@ int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid, unsigned char *buf, int *eld_size) { int i;
- int ret;
int ret = 0; int size;
/*
At Thu, 28 Mar 2013 05:20:22 -0400, mengdong.lin@intel.com wrote:
From: Mengdong Lin mengdong.lin@intel.com
In function snd_hdmi_get_eld(), the variable 'ret' should be initialized to 0. Otherwise it will be returned uninitialized as non-zero after ELD info is got successfully. Thus hdmi_present_sense() will always assume ELD info is invalid by mistake, and /proc file system cannot show the proper ELD info.
Signed-off-by: Mengdong Lin mengdong.lin@intel.com
Thanks, applied.
Takashi
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 7dd8463..d0d7ac1 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -320,7 +320,7 @@ int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid, unsigned char *buf, int *eld_size) { int i;
- int ret;
int ret = 0; int size;
/*
-- 1.7.10.4
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participants (3)
-
David Henningsson -
mengdong.lin＠intel.com -
Takashi Iwai