linux-kernel - Re: [PATCH] clk: Missing set

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20150225204233.421.61775@quantum>
Date:	Wed, 25 Feb 2015 12:42:33 -0800
From:	Mike Turquette <mturquette@...aro.org>
To:	Stephen Boyd <sboyd@...eaurora.org>,
	"Stephen Boyd" <sboyd@...eaurora.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: Missing set_phase op is an error

Quoting Stephen Boyd (2015-02-02 14:09:43)
> If a clock's clk_ops doesn't have the set_phase op set we should
> return an error from clk_set_phase(). This way clock consumers
> know that when they tried to set a phase it didn't work, as
> opposed to the current behavior where the return value is 0
> meaning success.
> 
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>

Applied to clk-next.

Thanks,
Mike

> ---
>  drivers/clk/clk.c | 12 ++++--------
>  1 file changed, 4 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index a29daf9edea4..b82714a84f5e 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -2069,10 +2069,10 @@ EXPORT_SYMBOL_GPL(clk_set_parent);
>   */
>  int clk_set_phase(struct clk *clk, int degrees)
>  {
> -       int ret = 0;
> +       int ret = -EINVAL;
>  
>         if (!clk)
> -               goto out;
> +               return 0;
>  
>         /* sanity check degrees */
>         degrees %= 360;
> @@ -2081,18 +2081,14 @@ int clk_set_phase(struct clk *clk, int degrees)
>  
>         clk_prepare_lock();
>  
> -       if (!clk->core->ops->set_phase)
> -               goto out_unlock;
> -
> -       ret = clk->core->ops->set_phase(clk->core->hw, degrees);
> +       if (clk->core->ops->set_phase)
> +               ret = clk->core->ops->set_phase(clk->core->hw, degrees);
>  
>         if (!ret)
>                 clk->core->phase = degrees;
>  
> -out_unlock:
>         clk_prepare_unlock();
>  
> -out:
>         return ret;
>  }
>  EXPORT_SYMBOL_GPL(clk_set_phase);
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/