diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c
index 475f6c3..b959e34 100644
--- a/drivers/mtd/spi/sf_probe.c
+++ b/drivers/mtd/spi/sf_probe.c
@@ -119,7 +119,7 @@
 	struct erase_info instr;
 
 	if (offset % mtd->erasesize || len % mtd->erasesize) {
-		printf("SF: Erase offset/length not multiple of erase size\n");
+		debug("SF: Erase offset/length not multiple of erase size\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c
index fdcd830..0113e70 100644
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -2470,7 +2470,7 @@
 		 * designer) that this is bad.
 		 */
 		if (nor->flags & SNOR_F_BROKEN_RESET)
-			printf("enabling reset hack; may not recover from unexpected reboots\n");
+			debug("enabling reset hack; may not recover from unexpected reboots\n");
 		set_4byte(nor, nor->info, 1);
 	}
 
diff --git a/drivers/mtd/spi/spi-nor-tiny.c b/drivers/mtd/spi/spi-nor-tiny.c
index 9f676c6..fa26ea3 100644
--- a/drivers/mtd/spi/spi-nor-tiny.c
+++ b/drivers/mtd/spi/spi-nor-tiny.c
@@ -377,7 +377,7 @@
 	}
 	dev_dbg(nor->dev, "unrecognized JEDEC id bytes: %02x, %02x, %02x\n",
 		id[0], id[1], id[2]);
-	return ERR_PTR(-ENODEV);
+	return ERR_PTR(-EMEDIUMTYPE);
 }
 
 static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,
@@ -733,7 +733,7 @@
 
 	info = spi_nor_read_id(nor);
 	if (IS_ERR_OR_NULL(info))
-		return -ENOENT;
+		return PTR_ERR(info);
 	/* Parse the Serial Flash Discoverable Parameters table. */
 	ret = spi_nor_init_params(nor, info, &params);
 	if (ret)