On Tue, Oct 27, 2020 at 01:17:20PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
>
> Use the helper that checks for overflows internally instead of manually
> calculating the size of the new array.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
No problem with the patch, it does introduce some symmetry in the code.
Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> ---
> drivers/vhost/vringh.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
> index 8bd8b403f087..08a0e1c842df 100644
> --- a/drivers/vhost/vringh.c
> +++ b/drivers/vhost/vringh.c
> @@ -198,7 +198,8 @@ static int resize_iovec(struct vringh_kiov *iov, gfp_t gfp)
>
> flag = (iov->max_num & VRINGH_IOV_ALLOCATED);
> if (flag)
> - new = krealloc(iov->iov, new_num * sizeof(struct iovec), gfp);
> + new = krealloc_array(iov->iov, new_num,
> + sizeof(struct iovec), gfp);
> else {
> new = kmalloc_array(new_num, sizeof(struct iovec), gfp);
> if (new) {
> --
> 2.29.1
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