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ALSA: oxfw: fix memory leak of private data 

commit 498fe23aad upstream.

Although private data of sound card instance is usually allocated in the
tail of the instance, drivers in ALSA firewire stack allocate the private
data before allocating the instance. In this case, the private data
should be released explicitly at .private_free callback of the instance.

This commit fixes memory leak following to the above design.

Fixes: 6c29230e2a ('ALSA: oxfw: delayed registration of sound card')
Cc: <stable@vger.kernel.org> # v4.7+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Takashi Sakamoto 2018-09-13 21:31:18 +09:00 committed by Greg Kroah-Hartman
parent 08f4f8b938
commit ff6805037d
1 changed files with 1 additions and 0 deletions
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sound/firewire/oxfw/oxfw.c
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@ -136,6 +136,7 @@ static void oxfw_free(struct snd_oxfw *oxfw)
kfree(oxfw->spec);
mutex_destroy(&oxfw->mutex);
kfree(oxfw);
}
/*