mpegts: Fix dvb linkage leaks

CID #1224130

diff --git a/gst-libs/gst/mpegts/gst-dvb-descriptor.c b/gst-libs/gst/mpegts/gst-dvb-descriptor.c
index 52638fe..94328b0 100644 (file)
--- a/gst-libs/gst/mpegts/gst-dvb-descriptor.c
+++ b/gst-libs/gst/mpegts/gst-dvb-descriptor.c
@@ -563,21 +563,23 @@ _gst_mpegts_dvb_linkage_descriptor_copy (GstMpegtsDVBLinkageDescriptor * source)
 void
 gst_mpegts_dvb_linkage_descriptor_free (GstMpegtsDVBLinkageDescriptor * source)
 {
-  switch (source->linkage_type) {
-    case GST_MPEGTS_DVB_LINKAGE_MOBILE_HAND_OVER:
-      g_slice_free (GstMpegtsDVBLinkageMobileHandOver, source->linkage_data);
-      break;
-    case GST_MPEGTS_DVB_LINKAGE_EVENT:
-      g_slice_free (GstMpegtsDVBLinkageEvent, source->linkage_data);
-      break;
-    case GST_MPEGTS_DVB_LINKAGE_EXTENDED_EVENT:
-      g_ptr_array_unref (source->linkage_data);
-      break;
-    default:
-      break;
-  }
+  if (source->linkage_data)
+    switch (source->linkage_type) {
+      case GST_MPEGTS_DVB_LINKAGE_MOBILE_HAND_OVER:
+        g_slice_free (GstMpegtsDVBLinkageMobileHandOver, source->linkage_data);
+        break;
+      case GST_MPEGTS_DVB_LINKAGE_EVENT:
+        g_slice_free (GstMpegtsDVBLinkageEvent, source->linkage_data);
+        break;
+      case GST_MPEGTS_DVB_LINKAGE_EXTENDED_EVENT:
+        g_ptr_array_unref (source->linkage_data);
+        break;
+      default:
+        break;
+    }
 
-  g_slice_free1 (source->private_data_length, source->private_data_bytes);
+  if (source->private_data_bytes)
+    g_slice_free1 (source->private_data_length, source->private_data_bytes);
   g_slice_free (GstMpegtsDVBLinkageDescriptor, source);
 }
 
@@ -635,7 +637,7 @@ gst_mpegts_descriptor_parse_dvb_linkage (const GstMpegtsDescriptor * descriptor,
       GstMpegtsDVBLinkageMobileHandOver *hand_over;
 
       if (end - data < 1)
-        return FALSE;
+        goto fail;
 
       hand_over = g_slice_new0 (GstMpegtsDVBLinkageMobileHandOver);
       res->linkage_data = (gpointer) hand_over;
@@ -650,22 +652,16 @@ gst_mpegts_descriptor_parse_dvb_linkage (const GstMpegtsDescriptor * descriptor,
           GST_MPEGTS_DVB_LINKAGE_HAND_OVER_LOCAL_VARIATION
           || hand_over->hand_over_type ==
           GST_MPEGTS_DVB_LINKAGE_HAND_OVER_ASSOCIATED) {
-        if (end - data < 2) {
-          g_slice_free (GstMpegtsDVBLinkageMobileHandOver, hand_over);
-          res->linkage_data = NULL;
-          return FALSE;
-        }
+        if (end - data < 2)
+          goto fail;
 
         hand_over->network_id = GST_READ_UINT16_BE (data);
         data += 2;
       }
 
       if (hand_over->origin_type == 0) {
-        if (end - data < 2) {
-          g_slice_free (GstMpegtsDVBLinkageMobileHandOver, hand_over);
-          res->linkage_data = NULL;
-          return FALSE;
-        }
+        if (end - data < 2)
+          goto fail;
 
         hand_over->initial_service_id = GST_READ_UINT16_BE (data);
         data += 2;
@@ -676,7 +672,7 @@ gst_mpegts_descriptor_parse_dvb_linkage (const GstMpegtsDescriptor * descriptor,
       GstMpegtsDVBLinkageEvent *event;
 
       if (end - data < 3)
-        return FALSE;
+        goto fail;
 
       event = g_slice_new0 (GstMpegtsDVBLinkageEvent);
       res->linkage_data = (gpointer) event;
@@ -765,8 +761,7 @@ gst_mpegts_descriptor_parse_dvb_linkage (const GstMpegtsDescriptor * descriptor,
   return TRUE;
 
 fail:
-  g_ptr_array_unref (res->linkage_data);
-  res->linkage_data = NULL;
+  gst_mpegts_dvb_linkage_descriptor_free (res);
   return FALSE;
 }