diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 49552a1..a7c4253 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -1571,9 +1571,11 @@
     status_t status = NO_ERROR;
     static const int32_t kMaxTries = 5;
     int32_t tryCounter = kMaxTries;
+    const size_t originalFrameCount = buffer->mFrameCount;
     do {
         if (status == NOT_ENOUGH_DATA) {
             restartIfDisabled();
+            buffer->mFrameCount = originalFrameCount; // cleared on error, must be restored.
         }
         status = mProxy->obtainBuffer(buffer, timeOut);
     } while ((status == NOT_ENOUGH_DATA) && (tryCounter-- > 0));