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ALSA: fireworks: fix memory leak of response buffer at error path

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commit c3b55e2ec9 upstream.

After allocating memory object for response buffer, ALSA fireworks
driver has leak of the memory object at error path.

This commit releases the object at the error path.

Fixes: 7d3c1d5901aa('ALSA: fireworks: 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>
This commit is contained in:
Takashi Sakamoto 2018-09-17 17:26:41 +09:00 committed by Greg Kroah-Hartman
parent 454fd956d0
commit be6d42cd5c
1 changed files with 2 additions and 0 deletions
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2
sound/firewire/fireworks/fireworks.c
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@ -301,6 +301,8 @@ do_registration(struct work_struct *work)
snd_efw_transaction_remove_instance(efw);
snd_efw_stream_destroy_duplex(efw);
snd_card_free(efw->card);
kfree(efw->resp_buf);
efw->resp_buf = NULL;
dev_info(&efw->unit->device,
"Sound card registration failed: %d\n", err);
}