am 66abe3ae: Merge "Fix for crash if no content in DESCRIBE response"

* commit '66abe3ae38665256c8fe97770f046bf9c68625aa':
  Fix for crash if no content in DESCRIBE response
diff --git a/media/libstagefright/rtsp/MyHandler.h b/media/libstagefright/rtsp/MyHandler.h
index 96c7683..b2f0e5e 100644
--- a/media/libstagefright/rtsp/MyHandler.h
+++ b/media/libstagefright/rtsp/MyHandler.h
@@ -422,6 +422,9 @@
 
                     if (response->mStatusCode != 200) {
                         result = UNKNOWN_ERROR;
+                    } else if (response->mContent == NULL) {
+                        result = ERROR_MALFORMED;
+                        ALOGE("The response has no content.");
                     } else {
                         mSessionDesc = new ASessionDescription;