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ALSA: oxfw: fix memory leak of discovered stream formats at error path

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After finishing discover of stream formats, ALSA OXFW driver has memory
leak of allocated memory object at error path.

This commit releases the memory object at the error path.

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>
This commit is contained in:
Takashi Sakamoto 2018-09-17 17:26:20 +09:00 committed by Takashi Iwai
parent ce925f088b
commit 1064bc685d
1 changed files with 7 additions and 0 deletions
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7
sound/firewire/oxfw/oxfw.c
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@ -208,6 +208,7 @@ static int detect_quirks(struct snd_oxfw *oxfw)
static void do_registration(struct work_struct *work)
{
struct snd_oxfw *oxfw = container_of(work, struct snd_oxfw, dwork.work);
int i;
int err;
if (oxfw->registered)
@ -270,6 +271,12 @@ static void do_registration(struct work_struct *work)
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
if (oxfw->has_output)
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; ++i) {
kfree(oxfw->tx_stream_formats[i]);
oxfw->tx_stream_formats[i] = NULL;
kfree(oxfw->rx_stream_formats[i]);
oxfw->rx_stream_formats[i] = NULL;
}
snd_card_free(oxfw->card);
kfree(oxfw->spec);
oxfw->spec = NULL;