From 5366a64033ef46d7fc36db097d4bde12af22c405 Mon Sep 17 00:00:00 2001 From: Brent Lu Date: Mon, 4 Sep 2023 18:40:46 +0800 Subject: ASoC: rt5645: NULL pointer access when removing jack Machine driver calls snd_soc_component_set_jack() function with NULL jack and data parameters when removing jack in codec exit function. Do not access data when jack is NULL. Signed-off-by: Brent Lu Link: https://lore.kernel.org/r/20230904104046.4150208-1-brent.lu@intel.com Signed-off-by: Mark Brown --- sound/soc/codecs/rt5645.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'sound') diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index 038d93e20883..1a137ca3f496 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -3269,13 +3269,17 @@ static int rt5645_component_set_jack(struct snd_soc_component *component, { struct snd_soc_jack *mic_jack = NULL; struct snd_soc_jack *btn_jack = NULL; - int *type = (int *)data; + int type; - if (*type & SND_JACK_MICROPHONE) - mic_jack = hs_jack; - if (*type & (SND_JACK_BTN_0 | SND_JACK_BTN_1 | - SND_JACK_BTN_2 | SND_JACK_BTN_3)) - btn_jack = hs_jack; + if (hs_jack) { + type = *(int *)data; + + if (type & SND_JACK_MICROPHONE) + mic_jack = hs_jack; + if (type & (SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3)) + btn_jack = hs_jack; + } return rt5645_set_jack_detect(component, hs_jack, mic_jack, btn_jack); } -- cgit v1.2.3-70-g09d2