Re: [PATCH v5 1/8] clk: Zero init clk_init_data in helpers

[Stephen Boyd <sboyd@kernel.org>]

Quoting Manivannan Sadhasivam (2019-09-16 09:14:40)
> The clk_init_data struct needs to be initialized to zero for the new
> parent_map implementation to work correctly. Otherwise, the member which
> is available first will get processed.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>  drivers/clk/clk-composite.c  | 2 +-
>  drivers/clk/clk-divider.c    | 2 +-
>  drivers/clk/clk-fixed-rate.c | 2 +-
>  drivers/clk/clk-gate.c       | 2 +-
>  drivers/clk/clk-mux.c        | 2 +-
>  5 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
> index b06038b8f658..4d579f9d20f6 100644
> --- a/drivers/clk/clk-composite.c
> +++ b/drivers/clk/clk-composite.c
> @@ -208,7 +208,7 @@ struct clk_hw *clk_hw_register_composite(struct device *dev, const char *name,
>                         unsigned long flags)
>  {
>         struct clk_hw *hw;
> -       struct clk_init_data init;
> +       struct clk_init_data init = { NULL };

I'd prefer { } because then we don't have to worry about ordering the
struct to have a pointer vs. something else first.

>         struct clk_composite *composite;
>         struct clk_ops *clk_composite_ops;
>         int ret;