[PATCH 3/3] clk: rockchip: Correct the behaviour of restoring cached phase

[Heiko Stuebner]

Am Mittwoch, 21. März 2018, 03:39:20 CET schrieb Shawn Lin:
> We can't restore every phase, for instance the invalid phase and
> the phase for coming rate which is out of the scope of boards'
> ability. And this patch also corrects the error path to return
> invalid pointer to clk if clk_notifier_register failed introduced
> by the same offending commit.
> 
> Fixes: 60cf09e45fbc ("clk: rockchip: Restore the clock phase after the rate was changed")
> Reported-by: wlq <wlq at rock-chips.com>
> Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
> Tested-by: wlq <wlq at rock-chips.com>

I've split off the part below [fix for error handling] into a separate
patch and applied both patches for 4.17


Thanks
Heiko

> @@ -211,8 +223,10 @@ struct clk *rockchip_clk_register_mmc(const char *name,
>  	mmc_clock->shift = shift;
>  
>  	clk = clk_register(NULL, &mmc_clock->hw);
> -	if (IS_ERR(clk))
> +	if (IS_ERR(clk)) {
> +		ret = PTR_ERR(clk);
>  		goto err_register;
> +	}
>  
>  	mmc_clock->clk_rate_change_nb.notifier_call =
>  				&rockchip_mmc_clk_rate_notify;
> @@ -225,5 +239,5 @@ struct clk *rockchip_clk_register_mmc(const char *name,
>  	clk_unregister(clk);
>  err_register:
>  	kfree(mmc_clock);
> -	return clk;
> +	return ERR_PTR(ret);
>  }
>