soc: rockchip: power-domain: Handle errors from of_genpd_add_provider_onecell

It was a bit surprising that the device was reported to have probed just
fine, but the provider hadn't been registered.

So handle any errors when registering the provider and fail the probe
accordingly.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index d36a7351af9de83184cb1a3a104f6cbcd35da0ed..1c78c42416c69b36e26b3572b8258b753f10ad6e 100644 (file)
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -672,7 +672,11 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev)
                goto err_out;
        }
 
-       of_genpd_add_provider_onecell(np, &pmu->genpd_data);
+       error = of_genpd_add_provider_onecell(np, &pmu->genpd_data);
+       if (error) {
+               dev_err(dev, "failed to add provider: %d\n", error);
+               goto err_out;
+       }
 
        return 0;