From bac5ba632e4d02cb2b4a383ab968c86825fd46b3 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@collabora.co.uk>
Date: Mon, 14 Jan 2013 17:00:23 +0100
Subject: [PATCH] adapter: handle map failure

---
 libs/gst/base/gstadapter.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/gst/base/gstadapter.c b/libs/gst/base/gstadapter.c
index 74bcee06a6..71c546ad97 100644
--- a/libs/gst/base/gstadapter.c
+++ b/libs/gst/base/gstadapter.c
@@ -1044,7 +1044,9 @@ gst_adapter_masked_scan_uint32_peek (GstAdapter * adapter, guint32 mask,
     gst_buffer_unmap (buf, &info);
     buf = g->data;
 
-    gst_buffer_map (buf, &info, GST_MAP_READ);
+    if (!gst_buffer_map (buf, &info, GST_MAP_READ))
+      return -1;
+
     bsize = info.size;
     bdata = info.data;
   } while (TRUE);