1 files changed, 7 insertions, 1 deletions
diff --git a/libvo/vo_fsdga.c b/libvo/vo_fsdga.c
index f20ea49d0d..2e18bd1f73 100644
--- a/libvo/vo_fsdga.c
+++ b/libvo/vo_fsdga.c
@@ -21,6 +21,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 
 //#include "fastmemcpy.h"
 
@@ -458,7 +459,12 @@ int vo_dga_query_event(void){
 
 static uint32_t preinit(const char *arg)
 {
-  return 0;
+    if(arg) 
+    {
+	printf("vo_fsdga: Unknown subdevice: %s\n",arg);
+	return ENOSYS;
+    }
+    return 0;
 }
 
 static uint32_t control(uint32_t request, void *data, ...)