From 242c46c023610dbc0213fc8fb6b71eb836bc5d95 Mon Sep 17 00:00:00 2001
From: Dragos Tarcatu <dragos_tarcatu@mentor.com>
Date: Fri, 7 Feb 2020 20:53:25 +0200
Subject: [PATCH] ASoC: topology: Fix memleak in soc_tplg_manifest_load()
Git-commit: 242c46c023610dbc0213fc8fb6b71eb836bc5d95
Patch-mainline: v5.6-rc5
References: git-fixes

In case of ABI version mismatch, _manifest needs to be freed as
it is just a copy of the original topology manifest. However, if
a driver manifest handler is defined, that would get executed and
the cleanup is never reached. Fix that by getting the return status
of manifest() instead of returning directly.

Fixes: 583958fa2e52 ("ASoC: topology: Make manifest backward compatible from ABI v4")
Signed-off-by: Dragos Tarcatu <dragos_tarcatu@mentor.com>
Link: https://lore.kernel.org/r/20200207185325.22320-3-dragos_tarcatu@mentor.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/soc-topology.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 953517a73298..22c38df40d5a 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -2544,7 +2544,7 @@ static int soc_tplg_manifest_load(struct soc_tplg *tplg,
 {
 	struct snd_soc_tplg_manifest *manifest, *_manifest;
 	bool abi_match;
-	int err;
+	int ret = 0;
 
 	if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
 		return 0;
@@ -2557,19 +2557,19 @@ static int soc_tplg_manifest_load(struct soc_tplg *tplg,
 		_manifest = manifest;
 	} else {
 		abi_match = false;
-		err = manifest_new_ver(tplg, manifest, &_manifest);
-		if (err < 0)
-			return err;
+		ret = manifest_new_ver(tplg, manifest, &_manifest);
+		if (ret < 0)
+			return ret;
 	}
 
 	/* pass control to component driver for optional further init */
 	if (tplg->comp && tplg->ops && tplg->ops->manifest)
-		return tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
+		ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
 
 	if (!abi_match)	/* free the duplicated one */
 		kfree(_manifest);
 
-	return 0;
+	return ret;
 }
 
 /* validate header magic, size and type */
-- 
2.16.4