diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index fc960a3..330b25f 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -328,7 +328,7 @@ static int parse_cmdline_partitions(struct mtd_info *master,
 
 	for(part = partitions; part; part = part->next)
 	{
-		if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id)))
+		if (mtd_id && (!strcmp(part->mtd_id, mtd_id)))
 		{
 			for(i = 0, offset = 0; i < part->num_parts; i++)
 			{