From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Thu, 31 Oct 2013 13:03:56 +0100 Subject: [PATCH] clk: Do not dereference potential NULL pointer Message-ID: <1383221036-26890-1-git-send-email-treding@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org A NULL pointer may be passed to _clk_register() for the dev parameter (via clk_register()). Make sure not to dereference it before checking that it's valid. Signed-off-by: Thierry Reding --- drivers/clk/clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index b68a999..c0b52e3 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1976,7 +1976,7 @@ static int _clk_register(struct device *dev, struct clk_hw *hw, struct clk *clk) hw->regmap = hw->init->regmap; else if (dev && dev_get_regmap(dev, NULL)) hw->regmap = dev_get_regmap(dev, NULL); - else if (dev->parent) + else if (dev && dev->parent) hw->regmap = dev_get_regmap(dev->parent, NULL); /* allocate local copy in case parent_names is __initdata */ -- 1.8.4