diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index db85f1fb131..711b3004b3e 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -384,9 +384,10 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
 	 * get minor, add to list
 	 */
 	down_write(&dcssblk_devices_sem);
-	if (dcssblk_get_segment_by_name(local_buf)) {
+	if (dcssblk_get_device_by_name(local_buf)) {
+		up_write(&dcssblk_devices_sem);
 		rc = -EEXIST;
-		goto release_gd;
+		goto unload_seg;
 	}
 	rc = dcssblk_assign_free_minor(dev_info);
 	if (rc) {