[alsa-devel] [PATCH 3/8] ALSA: x86: Fix memory leak in had_build_channel_allocation_map()
Takashi Iwai
tiwai at suse.de
Wed Feb 15 22:29:31 CET 2017
The previously allocated chmap has to be released before setting the
new one.
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
sound/x86/intel_hdmi_audio.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index a7343f2d2730..5f2445389716 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -444,11 +444,12 @@ static void had_build_channel_allocation_map(struct snd_intelhad *intelhaddata)
u8 eld_high, eld_high_mask = 0xF0;
u8 high_msb;
+ kfree(intelhaddata->chmap->chmap);
+ intelhaddata->chmap->chmap = NULL;
+
chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
- if (!chmap) {
- intelhaddata->chmap->chmap = NULL;
+ if (!chmap)
return;
- }
dev_dbg(intelhaddata->dev, "eld speaker = %x\n",
intelhaddata->eld[DRM_ELD_SPEAKER]);
@@ -493,10 +494,8 @@ static void had_build_channel_allocation_map(struct snd_intelhad *intelhaddata)
break;
}
}
- if (i >= ARRAY_SIZE(channel_allocations)) {
- intelhaddata->chmap->chmap = NULL;
+ if (i >= ARRAY_SIZE(channel_allocations))
kfree(chmap);
- }
}
/*
--
2.11.1
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