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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2018-01-23 03:41:24 +0300
committerMark Brown <broonie@kernel.org>2018-01-23 14:17:56 +0300
commit971da24c48a9447fb7a3c7805812fd5f443ca008 (patch)
tree00fb0782e837b6bc47176814918bab0df25f0294 /sound
parent031734b7d6532633d0cde73475c30646bf37cd6d (diff)
downloadlinux-971da24c48a9447fb7a3c7805812fd5f443ca008.tar.xz
ASoC: soc-core: snd_soc_rtdcom_lookup() cares component driver name
snd_soc_rtdcom_lookup() look up component by uisng driver name. Then, it uses component->driver->name. Some driver might doesn't have it, thus it should care NULL pointer. This patch solve this issue. Reported-by: Mukunda,Vijendar <vijendar.mukunda@amd.com> Reported-by: Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Mukunda,Vijendar <vijendar.mukunda@amd.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-core.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9b79c2199781..52b2e04cc5e2 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -590,9 +590,17 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd,
{
struct snd_soc_rtdcom_list *rtdcom;
+ if (!driver_name)
+ return NULL;
+
for_each_rtdcom(rtd, rtdcom) {
- if ((rtdcom->component->driver->name == driver_name) ||
- strcmp(rtdcom->component->driver->name, driver_name) == 0)
+ const char *component_name = rtdcom->component->driver->name;
+
+ if (!component_name)
+ continue;
+
+ if ((component_name == driver_name) ||
+ strcmp(component_name, driver_name) == 0)
return rtdcom->component;
}