clk: gpio: Unlock mutex on error path

We don't unlock the mutex if we fail to allocate the parent names
array. Unlock it and return an error in this case as well.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Cc: Sergej Sawazki <ce3a@gmx.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

diff --git a/drivers/clk/clk-gpio.c b/drivers/clk/clk-gpio.c
index c0d202c24a97e7558aa77a6e3ba16b5e83148399..41277a1526c76fbaa4f8849f555ab46446627c93 100644 (file)
--- a/drivers/clk/clk-gpio.c
+++ b/drivers/clk/clk-gpio.c
@@ -251,8 +251,10 @@ static struct clk *of_clk_gpio_delayed_register_get(
        num_parents = of_clk_get_parent_count(data->node);
 
        parent_names = kcalloc(num_parents, sizeof(char *), GFP_KERNEL);
-       if (!parent_names)
-               return ERR_PTR(-ENOMEM);
+       if (!parent_names) {
+               clk = ERR_PTR(-ENOMEM);
+               goto out;
+       }
 
        for (i = 0; i < num_parents; i++)
                parent_names[i] = of_clk_get_parent_name(data->node, i);