diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 9bfe329fb579..2ad4dda6d4a7 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3700,7 +3700,8 @@ int ata_dev_revalidate(struct ata_device *dev, unsigned int readid_flags)
 		goto fail;
 
 	/* verify n_sectors hasn't changed */
-	if (dev->class == ATA_DEV_ATA && dev->n_sectors != n_sectors) {
+	if (dev->class == ATA_DEV_ATA && n_sectors &&
+	    dev->n_sectors != n_sectors) {
 		ata_dev_printk(dev, KERN_INFO, "n_sectors mismatch "
 			       "%llu != %llu\n",
 			       (unsigned long long)n_sectors,