Re: [PATCH] nvme/core:disable streams when get stream params failed

From: Christoph Hellwig
Date: Tue May 12 2020 - 12:06:24 EST


On Wed, May 06, 2020 at 04:37:01PM +0800, Wu Bo wrote:
> After enable nvme streams, then if get stream params failed,
> We should disable streams before return error in
> nvme_configure_directives() function.
>
> Signed-off-by: Wu Bo <wubo40@xxxxxxxxxx>
> ---
> drivers/nvme/host/core.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index f2adea9..afe1f5a 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -552,8 +552,10 @@ static int nvme_configure_directives(struct nvme_ctrl *ctrl)
> return ret;
>
> ret = nvme_get_stream_params(ctrl, &s, NVME_NSID_ALL);
> - if (ret)
> + if (ret) {
> + nvme_disable_streams(ctrl);
> return ret;
> + }

Please use a out_disable goto label to not duplicate the error
handling with the other case that needs it.