From bb7cb54b388d8d0fbb3af27f14b121ee9c92e867 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 12 May 2016 09:38:49 +0530 Subject: [PATCH] ASoC: rt298: fix null deref on acpi driver data ACPI driver data can be NULL so we need to check that before dereference the driver data. Signed-off-by: Senthilnathan Veppur Signed-off-by: Vinod Koul Acked-by: Bard Liao Signed-off-by: Mark Brown --- sound/soc/codecs/rt298.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt298.c b/sound/soc/codecs/rt298.c index f0e6c06e89ac..52aacb1d5e4c 100644 --- a/sound/soc/codecs/rt298.c +++ b/sound/soc/codecs/rt298.c @@ -1184,7 +1184,7 @@ static int rt298_i2c_probe(struct i2c_client *i2c, /* enable jack combo mode on supported devices */ acpiid = acpi_match_device(dev->driver->acpi_match_table, dev); - if (acpiid) { + if (acpiid && acpiid->driver_data) { rt298->pdata = *(struct rt298_platform_data *) acpiid->driver_data; }