On Fri, 10 Feb 2023 01:06:09 -0800
Dan Williams <dan.j.williams@xxxxxxxxx> wrote:
> Jonathan noticed that the target list setup is not unwound completely
> upon error. Undo all the setup in the 'err_decrement:' exit path.
>
> Fixes: 27b3f8d13830 ("cxl/region: Program target lists")
> Reported-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> Link: http://lore.kernel.org/r/20230208123031.00006990@xxxxxxxxxx
> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> ---
> drivers/cxl/core/region.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
> index 040bbd39c81d..ae7d3adcd41a 100644
> --- a/drivers/cxl/core/region.c
> +++ b/drivers/cxl/core/region.c
> @@ -1347,6 +1347,8 @@ static int cxl_region_attach(struct cxl_region *cxlr,
>
> err_decrement:
> p->nr_targets--;
> + cxled->pos = -1;
> + p->targets[pos] = NULL;
> err:
> for (iter = ep_port; !is_cxl_root(iter);
> iter = to_cxl_port(iter->dev.parent))
>
>
