asoc: Add check for valid backend index
Add check for valid backend index in
msm_routing_put_port_chmap_mixer.
Change-Id: I8cda2313a38aaacc5255b47321ccfd0d573e1cfb
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
diff --git a/asoc/msm-pcm-routing-v2.c b/asoc/msm-pcm-routing-v2.c
index 0563d8c..6e8d74b 100644
--- a/asoc/msm-pcm-routing-v2.c
+++ b/asoc/msm-pcm-routing-v2.c
@@ -28870,6 +28870,11 @@
uint32_t be_idx = ucontrol->value.integer.value[0];
int i;
+ if (be_idx >= MSM_BACKEND_DAI_MAX) {
+ pr_err("%s: Invalid Backend index %d\n", __func__, be_idx);
+ return -EINVAL;
+ }
+
for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL_V8; i++) {
channel_map[i] = (char)(ucontrol->value.integer.value[i + 1]);
if (channel_map[i] > PCM_MAX_CHMAP_ID) {