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| author | Wu Fengguang <fengguang.wu@intel.com> | 2011-11-16 16:29:46 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-11-16 10:44:21 +0100 |
| commit | b95d68b8179764e29558b75cec35ef4a6a98925b (patch) | |
| tree | 875fb72efe3cefea4df2bb37404dd32590666065 /sound/pci/hda/hda_local.h | |
| parent | e53de8f00c80fd1a312c95bc5157fdb98d46e070 (diff) | |
| download | blackbird-op-linux-b95d68b8179764e29558b75cec35ef4a6a98925b.tar.gz blackbird-op-linux-b95d68b8179764e29558b75cec35ef4a6a98925b.zip | |
ALSA: hda - fix ELD memory leak
memset(eld) clears eld->proc_entry which will leak the struct
snd_info_entry when unloading module.
Fix it by
- memset only the fields before eld->eld_buffer
- set eld->eld_valid to true _after_ all eld fields have been filled
Cc: <stable@kernel.org>
Cc: Pierre-louis Bossart <pierre-louis.bossart@intel.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_local.h')
| -rw-r--r-- | sound/pci/hda/hda_local.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 6579e0f2bb57..618ddad17236 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -653,6 +653,9 @@ struct hdmi_eld { int spk_alloc; int sad_count; struct cea_sad sad[ELD_MAX_SAD]; + /* + * all fields above eld_buffer will be cleared before updating ELD + */ char eld_buffer[ELD_MAX_SIZE]; #ifdef CONFIG_PROC_FS struct snd_info_entry *proc_entry; |
