From 0b2e78865d92e2d70542cb1d4d7af1d4ea0a286d Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 16 Dec 2015 10:35:03 -0800 Subject: [PATCH] clk: gpio: handle error codes for of_clk_get_parent_count() We might make bad memory allocations if we get (e.g.) -ENOSYS from of_clk_get_parent_count(). Noticed by Coverity. Fixes: f66541ba02d5 ("clk: gpio: Get parent clk names in of_gpio_clk_setup()") Signed-off-by: Brian Norris Cc: Jyri Sarha Cc: Sergej Sawazki Cc: Stephen Boyd Signed-off-by: Michael Turquette --- drivers/clk/clk-gpio.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clk-gpio.c b/drivers/clk/clk-gpio.c index c1baa89cbf91..1767b9e3ca93 100644 --- a/drivers/clk/clk-gpio.c +++ b/drivers/clk/clk-gpio.c @@ -287,12 +287,14 @@ static void __init of_gpio_clk_setup(struct device_node *node, const char **parent_names; int i, num_parents; + num_parents = of_clk_get_parent_count(node); + if (num_parents < 0) + return; + data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) return; - num_parents = of_clk_get_parent_count(node); - parent_names = kcalloc(num_parents, sizeof(char *), GFP_KERNEL); if (!parent_names) { kfree(data); -- 2.39.5