btrfs: Replace kmalloc with kmalloc_array
Replace kmalloc(size * nr, ) with kmalloc_array(nr, size), thus making
it easier to check is that the calculation doesn't wrap or return a smaller allocation
Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3c16da5..0db6370 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4901,7 +4901,7 @@
num_stripes = map->num_stripes;
max_errors = nr_parity_stripes(map);
- raid_map = kmalloc(sizeof(u64) * num_stripes,
+ raid_map = kmalloc_array(num_stripes, sizeof(u64),
GFP_NOFS);
if (!raid_map) {
ret = -ENOMEM;