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>

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index d897ef8..089d6fa 100644 (file)
--- 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;

diff --cc fs/btrfs/compression.c
Simple merge

diff --cc fs/btrfs/ctree.c
Simple merge

diff --cc fs/btrfs/disk-io.c
Simple merge

diff --cc fs/btrfs/file-item.c
Simple merge

diff --cc fs/btrfs/file.c
Simple merge

diff --cc fs/btrfs/free-space-cache.c
Simple merge

diff --cc fs/btrfs/inode.c
Simple merge

diff --cc fs/btrfs/raid56.c
Simple merge

diff --cc fs/btrfs/scrub.c
Simple merge

diff --cc fs/btrfs/volumes.c
Simple merge