[PATCH 4/5] soc/tegra: pmc: Check return code for pm_genpd_init()

[Jon Hunter <jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>]

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-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 drivers/soc/tegra/pmc.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 8c9797379949..b6efb62ad1dd 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -849,7 +849,12 @@ 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) {
+		dev_err(pmc->dev, "failed to initialise genpd for %s: %d\n",
+			np->name, err);
+		goto remove_resets;
+	}
 
 	err = of_genpd_add_provider_simple(np, &pg->genpd);
 	if (err < 0) {
-- 
1.9.1