Re: [PATCH v2] clk: keystone: gate: fix clk_init_data initialization

From: Santosh Shilimkar
Date: Fri Jan 31 2014 - 09:46:35 EST


On Thursday 30 January 2014 01:03 PM, Ivan Khoronzhuk wrote:
> The clk_init_data struct is allocated in the stack. All members of
> this struct should be initialized before using otherwise it will
> lead to unpredictable situation as it can contain garbage.
>
> Ultimately the clk->flag field contains garbage. In my case it leads
> that flag CLK_IGNORE_UNUSED is set for most of clocks. As result a
> bunch of unused clocks cannot be disabled.
>
> So initialize flags in this structure too.
>
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxx>
> ---
> Based on
> git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
> keystone/master
>
> v1..v2:
> - updated commit description only
>
Thanks for the update.

> drivers/clk/keystone/gate.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/clk/keystone/gate.c b/drivers/clk/keystone/gate.c
> index 17a5983..86f1e36 100644
> --- a/drivers/clk/keystone/gate.c
> +++ b/drivers/clk/keystone/gate.c
> @@ -179,6 +179,7 @@ static struct clk *clk_register_psc(struct device *dev,
>
> init.name = name;
> init.ops = &clk_psc_ops;
> + init.flags = 0;
> init.parent_names = (parent_name ? &parent_name : NULL);
> init.num_parents = (parent_name ? 1 : 0);
>
>

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