diff options
| 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/patch_hdmi.c | |
| parent | e53de8f00c80fd1a312c95bc5157fdb98d46e070 (diff) | |
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/patch_hdmi.c')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 81b7b791b3c..aebfee50bd8 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -980,20 +980,19 @@ static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid, * the unsolicited response to avoid custom WARs. */ int present = snd_hda_pin_sense(codec, pin_nid); + bool eld_valid = false; - memset(eld, 0, sizeof(*eld)); + memset(eld, 0, offsetof(struct hdmi_eld, eld_buffer)); eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE); if (eld->monitor_present) - eld->eld_valid = !!(present & AC_PINSENSE_ELDV); - else - eld->eld_valid = 0; + eld_valid = !!(present & AC_PINSENSE_ELDV); printk(KERN_INFO "HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n", - codec->addr, pin_nid, eld->monitor_present, eld->eld_valid); + codec->addr, pin_nid, eld->monitor_present, eld_valid); - if (eld->eld_valid) + if (eld_valid) if (!snd_hdmi_get_eld(eld, codec, pin_nid)) snd_hdmi_show_eld(eld); |