From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Lin Subject: [PATCH 6/6] soc: rockchip: power-domain: check the existing of regmap Date: Mon, 15 Feb 2016 11:33:57 +0800 Message-ID: <1455507237-13161-1-git-send-email-shawn.lin@rock-chips.com> References: <1455507153-12914-1-git-send-email-shawn.lin@rock-chips.com> Return-path: In-Reply-To: <1455507153-12914-1-git-send-email-shawn.lin@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org To: Heiko Stuebner , Michael Turquette , Stephen Boyd Cc: linux-clk@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Shawn Lin List-Id: linux-rockchip.vger.kernel.org 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 --- 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 534c589..3c4a44d 100644 --- a/drivers/soc/rockchip/pm_domains.c +++ b/drivers/soc/rockchip/pm_domains.c @@ -402,6 +402,10 @@ 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 -ENODEV; + } /* * Configure power up and down transition delays for CORE -- 2.3.7