diff --git a/drivers/mtd/maps/omap_nor.c b/drivers/mtd/maps/omap_nor.c
index 240b0e2d095d..c12d8056bebd 100644
--- a/drivers/mtd/maps/omap_nor.c
+++ b/drivers/mtd/maps/omap_nor.c
@@ -110,7 +110,7 @@ static int __init omapflash_probe(struct platform_device *pdev)
 	err = parse_mtd_partitions(info->mtd, part_probes, &info->parts, 0);
 	if (err > 0)
 		add_mtd_partitions(info->mtd, info->parts, err);
-	else if (err < 0 && pdata->parts)
+	else if (err <= 0 && pdata->parts)
 		add_mtd_partitions(info->mtd, pdata->parts, pdata->nr_parts);
 	else
 #endif
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c
index 3d44d040a47d..ad81ab8e95e2 100644
--- a/drivers/mtd/onenand/generic.c
+++ b/drivers/mtd/onenand/generic.c
@@ -76,7 +76,7 @@ static int __devinit generic_onenand_probe(struct device *dev)
 	err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0);
 	if (err > 0)
 		add_mtd_partitions(&info->mtd, info->parts, err);
-	else if (err < 0 && pdata->parts)
+	else if (err <= 0 && pdata->parts)
 		add_mtd_partitions(&info->mtd, pdata->parts, pdata->nr_parts);
 	else
 #endif