From 0c8f86322f4debca6dc899603e56397a6ae7c2dc Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Mon, 2 Feb 2015 14:38:29 +0100 Subject: dm snapshot: remove unnecessary NULL checks before vfree() calls The vfree() function performs input parameter validation. Thus the NULL pointer test around vfree() calls is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Mike Snitzer --- drivers/md/dm-snap-persistent.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index d6e88178d22c..808b8419bc48 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -200,16 +200,11 @@ err_area: static void free_area(struct pstore *ps) { - if (ps->area) - vfree(ps->area); + vfree(ps->area); ps->area = NULL; - - if (ps->zero_area) - vfree(ps->zero_area); + vfree(ps->zero_area); ps->zero_area = NULL; - - if (ps->header_area) - vfree(ps->header_area); + vfree(ps->header_area); ps->header_area = NULL; } @@ -605,8 +600,7 @@ static void persistent_dtr(struct dm_exception_store *store) free_area(ps); /* Allocated in persistent_read_metadata */ - if (ps->callbacks) - vfree(ps->callbacks); + vfree(ps->callbacks); kfree(ps); } -- cgit v1.2.3