diff --git a/libs/audioflinger/AudioHardwareGeneric.cpp b/libs/audioflinger/AudioHardwareGeneric.cpp
index 62beada..1e159b8 100644
--- a/libs/audioflinger/AudioHardwareGeneric.cpp
+++ b/libs/audioflinger/AudioHardwareGeneric.cpp
@@ -30,6 +30,7 @@
 #include <utils/String8.h>
 
 #include "AudioHardwareGeneric.h"
+#include <media/AudioRecord.h>
 
 namespace android {
 
@@ -93,9 +94,15 @@
 }
 
 AudioStreamIn* AudioHardwareGeneric::openInputStream(
-        int format, int channelCount, uint32_t sampleRate, status_t *status,
-        AudioSystem::audio_in_acoustics acoustics)
+        int inputSource, int format, int channelCount, uint32_t sampleRate,
+        status_t *status, AudioSystem::audio_in_acoustics acoustics)
 {
+    // check for valid input source
+    if ((inputSource < AudioRecord::DEFAULT_INPUT) ||
+        (inputSource >= AudioRecord::NUM_INPUT_SOURCES)) {
+        return 0;
+    }
+
     AutoMutex lock(mLock);
 
     // only one input stream allowed