v4l2: fix compiler warnings when compiling with -DG_DISABLE_ASSERT

Compiler complains about uninitialised variables in the impossible
'default' code path in device provider source/sink switch-case.

diff --git a/sys/v4l2/gstv4l2deviceprovider.c b/sys/v4l2/gstv4l2deviceprovider.c
index e49e7e5..8e366d4 100644 (file)
--- a/sys/v4l2/gstv4l2deviceprovider.c
+++ b/sys/v4l2/gstv4l2deviceprovider.c
@@ -438,8 +438,8 @@ gst_v4l2_device_new (const gchar * device_path, const gchar * device_name,
     GstCaps * caps, GstV4l2DeviceType type)
 {
   GstV4l2Device *gstdev;
-  const gchar *element;
-  const gchar *klass;
+  const gchar *element = NULL;
+  const gchar *klass = NULL;
 
   g_return_val_if_fail (device_path, NULL);
   g_return_val_if_fail (device_name, NULL);