Commit 21ec672e authored Jan 26, 2021 by Tian Tao Committed by Mike Snitzer Feb 03, 2021

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 <tiantao6@hisilicon.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

parent cb728484

drivers/md/dm-writecache.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -2004,7 +2004,6 @@ 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);

		if (wc->memory_map) {
		@@ -2020,7 +2019,6 @@ 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);

		kfree(wc);