diff --git a/net/9p/client.c b/net/9p/client.c
index 9e3b0e6..81e667b 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -280,7 +280,8 @@
 	 * buffer to read the data into */
 	tag++;
 
-	BUG_ON(tag >= c->max_tag);
+	if(tag >= c->max_tag) 
+		return NULL;
 
 	row = tag / P9_ROW_MAXTAG;
 	col = tag % P9_ROW_MAXTAG;