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

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commit c3b55e2ec9c76e7a0de2a0b1dc851fdc9440385b 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 40e2596f06
commit d992909717
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 @@ error:
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);
}