Re: clk: stm32mp1: Fix a memory leak in 'clk_stm32_register_gate_ops()'

From: Gabriel FERNANDEZ
Date: Mon May 14 2018 - 04:51:29 EST


Hi Christophe,

Many thanks !

Acked-by: Gabriel Fernandez <gabriel.fernandez@xxxxxx>


On 05/13/2018 01:17 PM, Christophe Jaillet wrote:
> We allocate some memory which is neither used, nor referenced by anything.
> So axe it.
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> This patch as not been compile-tested, I don't have the corresponding arch
> and have not taken time to cross-compile it.
> ---
> drivers/clk/clk-stm32mp1.c | 9 +--------
> 1 file changed, 1 insertion(+), 8 deletions(-)
>
> diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c
> index edd3cf451401..dfb9cb5bd0c4 100644
> --- a/drivers/clk/clk-stm32mp1.c
> +++ b/drivers/clk/clk-stm32mp1.c
> @@ -579,14 +579,9 @@ clk_stm32_register_gate_ops(struct device *dev,
> spinlock_t *lock)
> {
> struct clk_init_data init = { NULL };
> - struct clk_gate *gate;
> struct clk_hw *hw;
> int ret;
>
> - gate = kzalloc(sizeof(*gate), GFP_KERNEL);
> - if (!gate)
> - return ERR_PTR(-ENOMEM);
> -
> init.name = name;
> init.parent_names = &parent_name;
> init.num_parents = 1;
> @@ -604,10 +599,8 @@ clk_stm32_register_gate_ops(struct device *dev,
> hw->init = &init;
>
> ret = clk_hw_register(dev, hw);
> - if (ret) {
> - kfree(gate);
> + if (ret)
> hw = ERR_PTR(ret);
> - }
>
> return hw;
> }