ASoC: soc-jack: calling snd_soc_jack_report causes a null pointer access

When snd_soc_card_jack_new is not called or the call fails,
calling this function causes a null pointer access

Signed-off-by: mnlife <mnlife@126.com>
Link: https://lore.kernel.org/r/20230811142511.6570-1-mnlife@126.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index f951acb2ce362a82ccaf4b247909cadce3194183..b2cc13b9c77b78b08b5a1f63a4cb25441b4a5edf 100644 (file)
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -37,7 +37,7 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
        struct snd_soc_jack_pin *pin;
        unsigned int sync = 0;
 
-       if (!jack)
+       if (!jack || !jack->jack)
                return;
        trace_snd_soc_jack_report(jack, mask, status);