From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Mon, 17 Sep 2018 08:26:08 +0000 (+0900)
Subject: ALSA: oxfw: fix memory leak for model-dependent data at error path
X-Git-Tag: v4.19~92^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ce925f088b979537f22f9e05eb923ef9822ca139;p=platform%2Fkernel%2Flinux-rpi3.git

ALSA: oxfw: fix memory leak for model-dependent data at error path

After allocating model-dependent data, ALSA OXFW driver has memory leak
of the data at error path.

This commit releases the data at the error path.

Fixes: 6c29230e2a5f ('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>
---

diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index fd34ef2..75c6ba2 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -271,6 +271,8 @@ error:
 	if (oxfw->has_output)
 		snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
 	snd_card_free(oxfw->card);
+	kfree(oxfw->spec);
+	oxfw->spec = NULL;
 	dev_info(&oxfw->unit->device,
 		 "Sound card registration failed: %d\n", err);
 }