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Message-Id: <20190626034117.23247-32-sashal@kernel.org>
Date: Tue, 25 Jun 2019 23:40:48 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Amadeusz Sławiński
<amadeuszx.slawinski@...ux.intel.com>,
Takashi Iwai <tiwai@...e.de>,
Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
Mark Brown <broonie@...nel.org>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 5.1 32/51] ALSA: hdac: fix memory release for SST and SOF drivers
From: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>
[ Upstream commit 6d647b736a6b1cbf2f8deab0e6a94c34a6ea9d60 ]
During the integration of HDaudio support, we changed the way in which
we get hdev in snd_hdac_ext_bus_device_init() to use one preallocated
with devm_kzalloc(), however it still left kfree(hdev) in
snd_hdac_ext_bus_device_exit(). It leads to oopses when trying to
rmmod and modprobe. Fix it, by just removing kfree call.
SOF also uses some of the snd_hdac_ functions for HDAudio support but
allocated the memory with kzalloc. A matching fix is provided
separately to align all users of the snd_hdac_ library.
Fixes: 6298542fa33b ("ALSA: hdac: remove memory allocation from snd_hdac_ext_bus_device_init")
Reviewed-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
sound/hda/ext/hdac_ext_bus.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c
index ec7715c6b0c0..c147ebe542da 100644
--- a/sound/hda/ext/hdac_ext_bus.c
+++ b/sound/hda/ext/hdac_ext_bus.c
@@ -172,7 +172,6 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
{
snd_hdac_device_exit(hdev);
- kfree(hdev);
}
EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
--
2.20.1
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