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ALSA: hdac: fix memory release for SST and SOF drivers

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[ 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@suse.de>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Amadeusz Sławiński 2019-05-22 11:21:41 -05:00 committed by Greg Kroah-Hartman
parent 26a6acde2a
commit 1023af0c06
1 changed files with 0 additions and 1 deletions
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1
sound/hda/ext/hdac_ext_bus.c
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@ -173,7 +173,6 @@ 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);