Fixed some memory leaks.

Original commit message from CVS:
Fixed some memory leaks.

sys/v4l2/gstv4l2src.c

@@ -102,6 +102,7 @@ static guint32 gst_v4l2_formats[] = {
 
 GST_BOILERPLATE (GstV4l2Src, gst_v4l2src, GstV4l2Element, GST_TYPE_V4L2ELEMENT);
 
+static void gst_v4l2src_dispose (GObject * object);
 
 /* basesrc methods */
 static gboolean gst_v4l2src_start (GstBaseSrc * src);
@@ -162,6 +163,9 @@ gst_v4l2src_class_init (GstV4l2SrcClass * klass)
   basesrc_class->stop = gst_v4l2src_stop;
 
   pushsrc_class->create = gst_v4l2src_create;
+
+  gobject_class->dispose = gst_v4l2src_dispose;
+
 }
 
 static void
@@ -183,6 +187,21 @@ gst_v4l2src_init (GstV4l2Src * v4l2src, GstV4l2SrcClass * klass)
   gst_base_src_set_live (GST_BASE_SRC (v4l2src), TRUE);
 }
 
+
+static void
+gst_v4l2src_dispose (GObject * object)
+{
+  GstV4l2Src *v4l2src = GST_V4L2SRC (object);
+
+  if (v4l2src->formats) {
+    gst_v4l2src_clear_format_list (v4l2src);
+  }
+
+  if (((GObjectClass *) parent_class)->dispose)
+    ((GObjectClass *) parent_class)->dispose (object);
+}
+
+
 static void
 gst_v4l2src_set_property (GObject * object,
     guint prop_id, const GValue * value, GParamSpec * pspec)

sys/v4l2/v4l2src_calls.c

@@ -789,15 +789,15 @@ gst_v4l2src_buffer_new (GstV4l2Src * v4l2src, guint size, guint8 * data,
     fps_d = 1;
   }
 
-  buf = (GstBuffer *) gst_mini_object_new (GST_TYPE_V4L2SRC_BUFFER);
-
-  GST_V4L2SRC_BUFFER (buf)->buf = srcbuf;
-
   if (data == NULL) {
-    GST_BUFFER_DATA (buf) = g_malloc (size);
+    buf = gst_buffer_new_and_alloc (size);
   } else {
+    buf = (GstBuffer *) gst_mini_object_new (GST_TYPE_V4L2SRC_BUFFER);
     GST_BUFFER_DATA (buf) = data;
+    GST_V4L2SRC_BUFFER (buf)->buf = srcbuf;
   }
+
+
   GST_BUFFER_SIZE (buf) = size;
 
   GST_BUFFER_TIMESTAMP (buf) =