diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 99d4fbf..9bfe329 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3705,6 +3705,10 @@
 			       "%llu != %llu\n",
 			       (unsigned long long)n_sectors,
 			       (unsigned long long)dev->n_sectors);
+
+		/* restore original n_sectors */
+		dev->n_sectors = n_sectors;
+
 		rc = -ENODEV;
 		goto fail;
 	}