dm-raid: fix variable in journal device check

JIRA: https://issues.redhat.com/browse/RHEL-119008
Upstream Status: kernel/git/torvalds/linux.git

commit db53805
Author: Heinz Mauelshagen <heinzm@redhat.com>
Date:   Tue Jun 10 20:53:30 2025 +0200

    dm-raid: fix variable in journal device check

    Replace "rdev" with correct loop variable name "r".

    Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
    Cc: stable@vger.kernel.org
    Fixes: 63c32ed ("dm raid: add raid4/5/6 journaling support")
    Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>

Author: bmarzins

drivers/md/dm-raid.c

@@ -2407,7 +2407,7 @@ static int super_init_validation(struct raid_set *rs, struct md_rdev *rdev)
 	 */
 	sb_retrieve_failed_devices(sb, failed_devices);
 	rdev_for_each(r, mddev) {
-		if (test_bit(Journal, &rdev->flags) ||
+		if (test_bit(Journal, &r->flags) ||
 		    !r->sb_page)
 			continue;
 		sb2 = page_address(r->sb_page);