From 4506697d9f8537a8d33e9e002f8efceb32d10757 Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Mon, 15 Feb 2016 11:33:57 +0800 Subject: [PATCH] soc: rockchip: power-domain: check the existing of regmap Check return value of syscon_node_to_regmap for rockchip_pm_domain_probe. If err value is returned, probe procedure should abort. Signed-off-by: Shawn Lin Signed-off-by: Heiko Stuebner --- drivers/soc/rockchip/pm_domains.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c index 2116131528f7..ac729fe42cc9 100644 --- a/drivers/soc/rockchip/pm_domains.c +++ b/drivers/soc/rockchip/pm_domains.c @@ -475,6 +475,10 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev) } pmu->regmap = syscon_node_to_regmap(parent->of_node); + if (IS_ERR(pmu->regmap)) { + dev_err(dev, "no regmap available\n"); + return PTR_ERR(pmu->regmap); + } /* * Configure power up and down transition delays for CORE -- 2.39.5