soc/tegra: pmc: Check return code for pm_genpd_init()

Commit 7eb231c337e0 ("PM / Domains: Convert pm_genpd_init() to return
an error code") updated pm_genpd_init() to return an error code. Update
the Tegra PMC driver to check the return value from pm_genpd_init() and
handle any errors returned.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
[treding@nvidia.com: use pr_err() instead of dev_err()]
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 78fffa22966fa7ae37cdab24ac9344764a0391d2..bc4267c7fe150ecc7b49fe9f4a86eef0cce0b8d1 100644 (file)
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -855,7 +855,12 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
            (id == TEGRA_POWERGATE_XUSBA || id == TEGRA_POWERGATE_XUSBC))
                goto power_on_cleanup;
 
-       pm_genpd_init(&pg->genpd, NULL, off);
+       err = pm_genpd_init(&pg->genpd, NULL, off);
+       if (err < 0) {
+               pr_err("failed to initialise power domain %s: %d\n", np->name,
+                      err);
+               goto remove_resets;
+       }
 
        err = of_genpd_add_provider_simple(np, &pg->genpd);
        if (err < 0) {