From 21ec672ecf18dd80e58936b0687da9098913c810 Mon Sep 17 00:00:00 2001 From: Tian Tao Date: Tue, 26 Jan 2021 10:40:02 +0800 Subject: [PATCH] dm writecache: fix unnecessary NULL check warnings Remove NULL checks before vfree() to fix these warnings: ./drivers/md/dm-writecache.c:2008:2-7: WARNING: NULL check before some freeing functions is not needed. ./drivers/md/dm-writecache.c:2024:2-7: WARNING: NULL check before some freeing functions is not needed. Signed-off-by: Tian Tao Signed-off-by: Mike Snitzer --- drivers/md/dm-writecache.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c index 1769653c3d6b..fd531d5a39c2 100644 --- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -2004,8 +2004,7 @@ static void writecache_dtr(struct dm_target *ti) if (wc->ssd_dev) dm_put_device(ti, wc->ssd_dev); - if (wc->entries) - vfree(wc->entries); + vfree(wc->entries); if (wc->memory_map) { if (WC_MODE_PMEM(wc)) @@ -2020,8 +2019,7 @@ static void writecache_dtr(struct dm_target *ti) if (wc->dm_io) dm_io_client_destroy(wc->dm_io); - if (wc->dirty_bitmap) - vfree(wc->dirty_bitmap); + vfree(wc->dirty_bitmap); kfree(wc); }