Re: [PATCH] virtio-mem: silence a static checker warning

From: Michael S. Tsirkin
Date: Wed Jun 10 2020 - 05:39:33 EST


On Wed, Jun 10, 2020 at 11:59:11AM +0300, Dan Carpenter wrote:
> Smatch complains that "rc" can be uninitialized if we hit the "break;"
> statement on the first iteration through the loop. I suspect that this
> can't happen in real life, but returning a zero literal is cleaner and
> silence the static checker warning.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> drivers/virtio/virtio_mem.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.

> diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
> index f658fe9149beb..893ef18060a02 100644
> --- a/drivers/virtio/virtio_mem.c
> +++ b/drivers/virtio/virtio_mem.c
> @@ -1192,7 +1192,7 @@ static int virtio_mem_mb_plug_any_sb(struct virtio_mem *vm, unsigned long mb_id,
> VIRTIO_MEM_MB_STATE_OFFLINE);
> }
>
> - return rc;
> + return 0;
> }
>
> /*
> --
> 2.26.2