Re: [PATCH][next] drivers: hv: remove redundant assignment to pointer primary_channel

From: Wei Liu
Date: Tue Apr 14 2020 - 16:24:22 EST


On Tue, Apr 14, 2020 at 04:23:43PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> The pointer primary_channel is being assigned with a value that is never,
> The assignment is redundant and can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Thanks.

Now that the only user of primary_channel is within the else branch, we
can go one step further to move the definition of primary_channel there.

I can make the adjustment while committing this patch, as well as
updating the commit message.

Wei.

> ---
> drivers/hv/channel_mgmt.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
> index ffd7fffa5f83..f7bbb8dc4b0f 100644
> --- a/drivers/hv/channel_mgmt.c
> +++ b/drivers/hv/channel_mgmt.c
> @@ -425,8 +425,6 @@ void hv_process_channel_removal(struct vmbus_channel *channel)
>
> if (channel->primary_channel == NULL) {
> list_del(&channel->listentry);
> -
> - primary_channel = channel;
> } else {
> primary_channel = channel->primary_channel;
> spin_lock_irqsave(&primary_channel->lock, flags);
> --
> 2.25.1
>