[PATCH v3] clk: mvebu/clk-cpu.c: fix memory leakage
Gregory CLEMENT
gregory.clement at free-electrons.com
Tue Jan 15 15:46:03 EST 2013
On 01/15/2013 07:44 PM, Cong Ding wrote:
> the variable cpuclk and clk_name should be properly freed when error happens.
Dear Cong Ding,
Thanks for you efforts!
I am happy with this patch and I tested it on the Armada XP DB board, so
you can now add my:
Acked-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
Mike,
could you take this patch for 3.8-rc fixes?
If you prefer, Jason agrees to take it, but you probably didn't notice it,
because he uses your former(and no more valid) email when he wrote this.
Thanks,
Gregory
>
> Signed-off-by: Cong Ding <dinggnu at gmail.com>
> Acked-by: Jason Cooper <jason at lakedaemon.net>
> ---
> drivers/clk/mvebu/clk-cpu.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/clk/mvebu/clk-cpu.c b/drivers/clk/mvebu/clk-cpu.c
> index ff004578..9dd2551 100644
> --- a/drivers/clk/mvebu/clk-cpu.c
> +++ b/drivers/clk/mvebu/clk-cpu.c
> @@ -124,7 +124,7 @@ void __init of_cpu_clk_setup(struct device_node *node)
>
> clks = kzalloc(ncpus * sizeof(*clks), GFP_KERNEL);
> if (WARN_ON(!clks))
> - return;
> + goto clks_out;
>
> for_each_node_by_type(dn, "cpu") {
> struct clk_init_data init;
> @@ -134,11 +134,11 @@ void __init of_cpu_clk_setup(struct device_node *node)
> int cpu, err;
>
> if (WARN_ON(!clk_name))
> - return;
> + goto bail_out;
>
> err = of_property_read_u32(dn, "reg", &cpu);
> if (WARN_ON(err))
> - return;
> + goto bail_out;
>
> sprintf(clk_name, "cpu%d", cpu);
> parent_clk = of_clk_get(node, 0);
> @@ -167,6 +167,9 @@ void __init of_cpu_clk_setup(struct device_node *node)
> return;
> bail_out:
> kfree(clks);
> + while(ncpus--)
> + kfree(cpuclk[ncpus].clk_name);
> +clks_out:
> kfree(cpuclk);
> }
>
>
--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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