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bcachefs: Use array_size() in call to copy_from_user()

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Use array_size() helper, instead of the open-coded version in
call to copy_from_user().

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Gustavo A. R. Silva 2023-12-18 18:26:26 -06:00 committed by Kent Overstreet
parent 038fecc045
commit ac19c4c3d0
1 changed files with 2 additions and 1 deletions
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3
fs/bcachefs/chardev.c
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@ -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;
}