--- zzzz-none-000/linux-5.4.213/fs/super.c	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/fs/super.c	2024-08-14 09:02:08.000000000 +0000
@@ -1291,7 +1291,8 @@
 
 	bdev = blkdev_get_by_path(fc->source, mode, fc->fs_type);
 	if (IS_ERR(bdev)) {
-		errorf(fc, "%s: Can't open blockdev", fc->source);
+		errorf(fc, "%s: Can't open blockdev, err: %ld", fc->source,
+								PTR_ERR(bdev));
 		return PTR_ERR(bdev);
 	}