diff options
| author | Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> | 2021-04-07 11:20:27 +0200 |
|---|---|---|
| committer | Denys Drozdov <denys.drozdov@toradex.com> | 2021-07-15 13:53:36 +0300 |
| commit | 5ef4bc40d410b9ec5eff8025cd348b1de4d14031 (patch) | |
| tree | 6a0603e3ffff2e802dad9775ed8f63ed377f822d /sound/soc/generic | |
| parent | c56d3b6ea0d91aff7ab549ecd88bd1f1f8e50e0e (diff) | |
ASoC: simple-card: fix possible uninitialized single_cpu local variable
[ Upstream commit fa74c223b6fd78a5314b4c61b9abdbed3c2185b4 ]
The 'single_cpu' local variable is assigned by asoc_simple_parse_dai()
and later used in a asoc_simple_canonicalize_cpu() call, assuming the
entire function did not exit on errors.
However the first function returns 0 if passed device_node is NULL,
thus leaving the variable uninitialized and reporting success.
Addresses-Coverity: Uninitialized scalar variable
Fixes: 8f7f298a3337 ("ASoC: simple-card-utils: separate asoc_simple_card_parse_dai()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20210407092027.60769-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound/soc/generic')
| -rw-r--r-- | sound/soc/generic/audio-graph-card.c | 2 | ||||
| -rw-r--r-- | sound/soc/generic/simple-card.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index 6007e6305735..1bc498124689 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -340,7 +340,7 @@ static int graph_dai_link_of(struct asoc_simple_priv *priv, struct device_node *top = dev->of_node; struct asoc_simple_dai *cpu_dai; struct asoc_simple_dai *codec_dai; - int ret, single_cpu; + int ret, single_cpu = 0; /* Do it only CPU turn */ if (!li->cpu) diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index c262281bc64d..58c200c27ba1 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -258,7 +258,7 @@ static int simple_dai_link_of(struct asoc_simple_priv *priv, struct device_node *plat = NULL; char prop[128]; char *prefix = ""; - int ret, single_cpu; + int ret, single_cpu = 0; /* * |CPU |Codec : turn |