btrfs: cleanup, use kmalloc_array/kcalloc array helpers

Convert kmalloc(nr * size, ..) to kmalloc_array that does additional
overflow checks, the zeroing variant is kcalloc.

Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index d897ef803b3b..089d6fac01a7 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -2990,8 +2990,8 @@ static void __btrfsic_submit_bio(int rw, struct bio *bio)
                                (unsigned long long)bio->bi_iter.bi_sector,
                                dev_bytenr, bio->bi_bdev);
 
-                mapped_datav = kmalloc(sizeof(*mapped_datav) * bio->bi_vcnt,
-                                       GFP_NOFS);
+                mapped_datav = kmalloc_array(bio->bi_vcnt,
+                                             sizeof(*mapped_datav), GFP_NOFS);
                 if (!mapped_datav)
                         goto leave;
                 cur_bytenr = dev_bytenr;