ASoC: topology: Check return value for soc_tplg_pcm_create()

[ Upstream commit a3039aef52d9ffeb67e9211899cd3e8a2953a01f ]

The return value of soc_tplg_pcm_create() is currently not checked
in soc_tplg_pcm_elems_load(). If an error is to occur there, the
topology ignores it and continues loading.

Fix that by checking the status and rejecting the topology on error.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Dragos Tarcatu <dragos_tarcatu@mentor.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191210003939.15752-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 88a7e86..069f38f 100644 (file)
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1890,6 +1890,7 @@ static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
        int count = hdr->count;
        int i;
        bool abi_match;
+       int ret;
 
        if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
                return 0;
@@ -1926,7 +1927,12 @@ static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
                }
 
                /* create the FE DAIs and DAI links */
-               soc_tplg_pcm_create(tplg, _pcm);
+               ret = soc_tplg_pcm_create(tplg, _pcm);
+               if (ret < 0) {
+                       if (!abi_match)
+                               kfree(_pcm);
+                       return ret;
+               }
 
                /* offset by version-specific struct size and
                 * real priv data size