Merge tag 'for-6.5/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Fix double free on memory allocation failure in DM integrity target's
   integrity_recalc()

 - Fix locking in DM raid target's raid_ctr() and around call to
   md_stop()

 - Fix DM cache target's cleaner policy to always allow work to be
   queued for writeback; even if cache isn't idle.

* tag 'for-6.5/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache policy smq: ensure IO doesn't prevent cleaner policy progress
  dm raid: protect md_stop() with 'reconfig_mutex'
  dm raid: clean up four equivalent goto tags in raid_ctr()
  dm raid: fix missing reconfig_mutex unlock in raid_ctr() error paths
  dm integrity: fix double free on memory allocation failure

1 files changed, 9 insertions, 11 deletions

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 8846bf510a35..becdb689190e 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3251,8 +3251,7 @@ size_check:
 	r = md_start(&rs->md);
 	if (r) {
 		ti->error = "Failed to start raid array";
-		mddev_unlock(&rs->md);
-		goto bad_md_start;
+		goto bad_unlock;
 	}
 
 	/* If raid4/5/6 journal mode explicitly requested (only possible with journal dev) -> set it */
@@ -3260,8 +3259,7 @@ size_check:
 		r = r5c_journal_mode_set(&rs->md, rs->journal_dev.mode);
 		if (r) {
 			ti->error = "Failed to set raid4/5/6 journal mode";
-			mddev_unlock(&rs->md);
-			goto bad_journal_mode_set;
+			goto bad_unlock;
 		}
 	}
 
@@ -3272,14 +3270,14 @@ size_check:
 	if (rs_is_raid456(rs)) {
 		r = rs_set_raid456_stripe_cache(rs);
 		if (r)
-			goto bad_stripe_cache;
+			goto bad_unlock;
 	}
 
 	/* Now do an early reshape check */
 	if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) {
 		r = rs_check_reshape(rs);
 		if (r)
-			goto bad_check_reshape;
+			goto bad_unlock;
 
 		/* Restore new, ctr requested layout to perform check */
 		rs_config_restore(rs, &rs_layout);
@@ -3288,7 +3286,7 @@ size_check:
 			r = rs->md.pers->check_reshape(&rs->md);
 			if (r) {
 				ti->error = "Reshape check failed";
-				goto bad_check_reshape;
+				goto bad_unlock;
 			}
 		}
 	}
@@ -3299,11 +3297,9 @@ size_check:
 	mddev_unlock(&rs->md);
 	return 0;
 
-bad_md_start:
-bad_journal_mode_set:
-bad_stripe_cache:
-bad_check_reshape:
+bad_unlock:
 	md_stop(&rs->md);
+	mddev_unlock(&rs->md);
 bad:
 	raid_set_free(rs);
 
@@ -3314,7 +3310,9 @@ static void raid_dtr(struct dm_target *ti)
 {
 	struct raid_set *rs = ti->private;
 
+	mddev_lock_nointr(&rs->md);
 	md_stop(&rs->md);
+	mddev_unlock(&rs->md);
 	raid_set_free(rs);
 }