ASoC: ops: Check bounds for second channel in snd_soc_put_volsw_sx()

[linux-2.6-microblaze.git] / sound / soc / soc-ops.c

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index 1ac7e2c..7cac26a 100644 (file)
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -451,6 +451,12 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 
                val_mask = mask << rshift;
                val2 = (ucontrol->value.integer.value[1] + min) & mask;
+
+               if (mc->platform_max && val2 > mc->platform_max)
+                       return -EINVAL;
+               if (val2 > max)
+                       return -EINVAL;
+
                val2 = val2 << rshift;
 
                err = snd_soc_component_update_bits(component, reg2, val_mask,