From ac19c4c3d02e19b365209d2cee409671e1fb66bb Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Mon, 18 Dec 2023 18:26:26 -0600 Subject: [PATCH] bcachefs: Use array_size() in call to copy_from_user() Use array_size() helper, instead of the open-coded version in call to copy_from_user(). Signed-off-by: Gustavo A. R. Silva Signed-off-by: Kent Overstreet --- fs/bcachefs/chardev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/bcachefs/chardev.c b/fs/bcachefs/chardev.c index 08922f7e380a9..295b1f4e9ece8 100644 --- a/fs/bcachefs/chardev.c +++ b/fs/bcachefs/chardev.c @@ -360,7 +360,8 @@ static long bch2_ioctl_fsck_offline(struct bch_ioctl_fsck_offline __user *user_a init_waitqueue_head(&thr->output.wait); darray_init(&thr->output2); - if (copy_from_user(devs, &user_arg->devs[0], sizeof(user_arg->devs[0]) * arg.nr_devs)) { + if (copy_from_user(devs, &user_arg->devs[0], + array_size(sizeof(user_arg->devs[0]), arg.nr_devs))) { ret = -EINVAL; goto err; } -- 2.30.2