Fix oops in mount error path when unload_nls called with bad pointer.

fs/cifs/CHANGES

+Version 0.98
+------------
+Fix hang in commit_write during reconnection of open files under heavy load.
+Fix unload_nls oops in a mount failure path. 
+
 Version 0.97
 ------------
 Fix byte range locking bug (endian problem) causing bad offset and

fs/cifs/cifsfs.c

@@ -81,6 +81,9 @@ cifs_read_super(struct super_block *sb, void *data,
 	cifs_sb = CIFS_SB(sb);
 	if(cifs_sb == NULL)
 		return -ENOMEM;
+	else
+		memset(cifs_sb,0,sizeof(struct cifs_sb_info));
+	
 
 	rc = cifs_mount(sb, cifs_sb, data, devname);