From: Dragos Tarcatu dragos_tarcatu@mentor.com

[ 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.... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/soc-topology.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 88a7e860b175..069f38fbf07b 100644 --- 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