diff --git a/drivers/mtd/maps/dilnetpc.c b/drivers/mtd/maps/dilnetpc.c
index b51c757817d819c3cc4352ed773df591a905222d..efb221692641e6ff0ae03ab444cc1d4803ef73e5 100644
--- a/drivers/mtd/maps/dilnetpc.c
+++ b/drivers/mtd/maps/dilnetpc.c
@@ -218,8 +218,8 @@ static void dnp_set_vpp(struct map_info *not_used, int on)
 	{
 		if(--vpp_counter == 0)
 			setcsc(CSC_RBWR, getcsc(CSC_RBWR) | 0x4);
-		else if(vpp_counter < 0)
-			BUG();
+		else
+			BUG_ON(vpp_counter < 0);
 	}
 	spin_unlock_irq(&dnpc_spin);
 }
@@ -240,8 +240,8 @@ static void adnp_set_vpp(struct map_info *not_used, int on)
 	{
 		if(--vpp_counter == 0)
 			setcsc(CSC_RBWR, getcsc(CSC_RBWR) | 0x8);
-		else if(vpp_counter < 0)
-			BUG();
+		else
+			BUG_ON(vpp_counter < 0);
 	}
 	spin_unlock_irq(&dnpc_spin);
 }
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 7f3ff500b68e37e3d5028bac85e4c22b9312db40..840dd66ce2dc63c84f4daf13240afe50d40b7d72 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -450,8 +450,7 @@ int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr)
 
 	kfree(tr->blkcore_priv);
 
-	if (!list_empty(&tr->devs))
-		BUG();
+	BUG_ON(!list_empty(&tr->devs));
 	return 0;
 }
 
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index b1bf8c411de78e6c7685d7cd8928e642dd1afeb5..9af840364a74ff849c2aa283b25c0dc6038565a1 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -477,8 +477,7 @@ static int concat_erase(struct mtd_info *mtd, struct erase_info *instr)
 	}
 
 	/* must never happen since size limit has been verified above */
-	if (i >= concat->num_subdev)
-		BUG();
+	BUG_ON(i >= concat->num_subdev);
 
 	/* now do the erase: */
 	err = 0;
@@ -500,8 +499,7 @@ static int concat_erase(struct mtd_info *mtd, struct erase_info *instr)
 		if ((err = concat_dev_erase(subdev, erase))) {
 			/* sanity check: should never happen since
 			 * block alignment has been checked above */
-			if (err == -EINVAL)
-				BUG();
+			BUG_ON(err == -EINVAL);
 			if (erase->fail_addr != 0xffffffff)
 				instr->fail_addr = erase->fail_addr + offset;
 			break;