linux-kernel - Re: [PATCH] CLK: TI: DRA7: return error code in failure case

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Date:	Thu, 19 Jun 2014 14:24:29 +0300
From:	Tero Kristo <t-kristo@...com>
To:	Mike Turquette <mturquette@...aro.org>,
	Julia Lawall <julia.lawall@...6.fr>
CC:	Dan Carpenter <dan.carpenter@...cle.com>,
	<kernel-janitors@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	J Keerthy <j-keerthy@...com>
Subject: Re: [PATCH] CLK: TI: DRA7: return error code in failure case

On 05/29/2014 12:47 AM, Mike Turquette wrote:
> Quoting Tero Kristo (2014-05-19 05:23:10)
>> On 05/19/2014 02:25 PM, Julia Lawall wrote:
>>> From: Julia Lawall <Julia.Lawall@...6.fr>
>>>
>>> Add a returned error code in the MAX_APLL_WAIT_TRIES case.  Remove the
>>> updating of the return variable r to 0 if MAX_APLL_WAIT_TRIES is not yet
>>> reached, because r is already 0 at this point.
>>>
>>> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
>>
>> Acked-by: Tero Kristo <t-kristo@...com>
>>
>> Mike, do you want to queue this as a fix or shall I add this to be
>> queued for 3.16?
>
> It's not a visible regression, so let's go with 3.16.

Thanks, queued for 3.16-rc fixes now, sorry about the latency.

-Tero

>
> Regards,
> Mike
>
>>
>> -Tero
>>
>>>
>>> ---
>>> diff --git a/drivers/clk/ti/apll.c b/drivers/clk/ti/apll.c
>>> index b986f61..efc71a0 100644
>>> --- a/drivers/clk/ti/apll.c
>>> +++ b/drivers/clk/ti/apll.c
>>> @@ -77,13 +77,11 @@ static int dra7_apll_enable(struct clk_hw *hw)
>>>        if (i == MAX_APLL_WAIT_TRIES) {
>>>                pr_warn("clock: %s failed transition to '%s'\n",
>>>                        clk_name, (state) ? "locked" : "bypassed");
>>> -     } else {
>>> +             r = -EBUSY;
>>> +     } else
>>>                pr_debug("clock: %s transition to '%s' in %d loops\n",
>>>                         clk_name, (state) ? "locked" : "bypassed", i);
>>>
>>> -             r = 0;
>>> -     }
>>> -
>>>        return r;
>>>    }
>>>
>>

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