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

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Date:	Wed, 28 May 2014 14:47:39 -0700
From:	Mike Turquette <mturquette@...aro.org>
To:	Tero Kristo <t-kristo@...com>,
	"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

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.

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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