Re: [PATCH 13/13] clk: basic: improve parent_names & return errors

[Sascha Hauer]

On Wed, Apr 11, 2012 at 06:02:51PM -0700, Mike Turquette wrote:
> This patch is the basic clk version of 'clk: core: copy parent_names &
> return error codes'.
> 
> The registration functions are changed to allow the core code to copy
> the array of strings and allow platforms to declare those arrays as
> __initdata.
> 
> This patch also converts all of the basic clk registration functions to
> return error codes which better aligns them with the existing clk.h api.
> 
> 
> + */
>  struct clk *clk_register_divider(struct device *dev, const char *name,
>  		const char *parent_name, unsigned long flags,
>  		void __iomem *reg, u8 shift, u8 width,
>  		u8 clk_divider_flags, spinlock_t *lock)
>  {
>  	struct clk_divider *div;
> -	struct clk *clk;
> +	struct clk *clk = ERR_PTR(-ENOMEM);
> +	const char *parent_names[1];
>  
> +	/* allocate the divider */
>  	div = kzalloc(sizeof(struct clk_divider), GFP_KERNEL);
> -
>  	if (!div) {
>  		pr_err("%s: could not allocate divider clk\n", __func__);
>  		return NULL;

You missed a conversion to ERR_PTR here.

Sascha

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