dm thin: remove return code variable in pool_map

Always returns DM_MAPIO_REMAPPED so no need for variable.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 464c6b6..ed1b7f5 100644 (file)
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -3447,7 +3447,6 @@ out_unlock:
 
 static int pool_map(struct dm_target *ti, struct bio *bio)
 {
-       int r;
        struct pool_c *pt = ti->private;
        struct pool *pool = pt->pool;
 
@@ -3456,10 +3455,9 @@ static int pool_map(struct dm_target *ti, struct bio *bio)
         */
        spin_lock_irq(&pool->lock);
        bio_set_dev(bio, pt->data_dev->bdev);
-       r = DM_MAPIO_REMAPPED;
        spin_unlock_irq(&pool->lock);
 
-       return r;
+       return DM_MAPIO_REMAPPED;
 }
 
 static int maybe_resize_data_dev(struct dm_target *ti, bool *need_commit)