diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index f606b6678b00..21d7f48e1d4e 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -100,7 +100,7 @@ static int mmc_decode_cid(struct mmc_card *card)
 		break;
 
 	default:
-		printk("%s: card has unknown MMCA version %d\n",
+		printk(KERN_ERR "%s: card has unknown MMCA version %d\n",
 			mmc_hostname(card->host), card->csd.mmca_vsn);
 		return -EINVAL;
 	}
@@ -123,7 +123,7 @@ static int mmc_decode_csd(struct mmc_card *card)
 	 */
 	csd_struct = UNSTUFF_BITS(resp, 126, 2);
 	if (csd_struct != 1 && csd_struct != 2) {
-		printk("%s: unrecognised CSD structure version %d\n",
+		printk(KERN_ERR "%s: unrecognised CSD structure version %d\n",
 			mmc_hostname(card->host), csd_struct);
 		return -EINVAL;
 	}
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index b6a2e53c9213..1edc62b1e5c6 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -149,7 +149,7 @@ static int mmc_decode_csd(struct mmc_card *card)
 		csd->write_partial = 0;
 		break;
 	default:
-		printk("%s: unrecognised CSD structure version %d\n",
+		printk(KERN_ERR "%s: unrecognised CSD structure version %d\n",
 			mmc_hostname(card->host), csd_struct);
 		return -EINVAL;
 	}
@@ -173,7 +173,7 @@ static int mmc_decode_scr(struct mmc_card *card)
 
 	scr_struct = UNSTUFF_BITS(resp, 60, 4);
 	if (scr_struct != 0) {
-		printk("%s: unrecognised SCR structure version %d\n",
+		printk(KERN_ERR "%s: unrecognised SCR structure version %d\n",
 			mmc_hostname(card->host), scr_struct);
 		return -EINVAL;
 	}
@@ -206,9 +206,8 @@ static int mmc_read_switch(struct mmc_card *card)
 
 	status = kmalloc(64, GFP_KERNEL);
 	if (!status) {
-		printk("%s: could not allocate a buffer for switch "
-		       "capabilities.\n",
-			mmc_hostname(card->host));
+		printk(KERN_ERR "%s: could not allocate a buffer for "
+			"switch capabilities.\n", mmc_hostname(card->host));
 		return err;
 	}
 
@@ -254,9 +253,8 @@ static int mmc_switch_hs(struct mmc_card *card)
 
 	status = kmalloc(64, GFP_KERNEL);
 	if (!status) {
-		printk("%s: could not allocate a buffer for switch "
-		       "capabilities.\n",
-			mmc_hostname(card->host));
+		printk(KERN_ERR "%s: could not allocate a buffer for "
+			"switch capabilities.\n", mmc_hostname(card->host));
 		return err;
 	}