[alsa-devel] [PATCH 1/2] ASoC: rt298: fix null deref on acpi driver data

[Vinod Koul]

ACPI driver data can be NULL so we need to check that before
dereference the driver data.

Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
 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 68cf8d5a174f..45dc5fa24961 100644
--- a/sound/soc/codecs/rt298.c
+++ b/sound/soc/codecs/rt298.c
@@ -1179,7 +1179,7 @@ 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;
 	}
-- 
1.9.1