linux-kernel - Re: [PATCH 4/10] drivers/net/can/flexcan.c: add missing clk

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Date:	Wed, 1 Jun 2011 22:13:05 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	David Miller <davem@...emloft.net>
Cc:	joe@...ches.com, wg@...ndegger.com,
	kernel-janitors@...r.kernel.org, socketcan-core@...ts.berlios.de,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/10] drivers/net/can/flexcan.c: add missing clk_put

On Wed, 1 Jun 2011, David Miller wrote:

> From: Julia Lawall <julia@...u.dk>
> Date: Wed, 1 Jun 2011 22:08:46 +0200 (CEST)
> 
> > On Wed, 1 Jun 2011, Joe Perches wrote:
> > 
> >> On Wed, 2011-06-01 at 19:10 +0200, Julia Lawall wrote:
> >> > The failed_get label is used after the call to clk_get has succeeded, so it
> >> > should be moved up above the call to clk_put.
> >> []
> >> > diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
> >> []
> >> > @@ -978,8 +978,8 @@ static int __devinit flexcan_probe(struct platform_device *pdev)
> >> >   failed_map:
> >> >  	release_mem_region(mem->start, mem_size);
> >> >   failed_req:
> >> > -	clk_put(clk);
> >> >   failed_get:
> >> > +	clk_put(clk);
> >> >   failed_clock:
> >> >  	return err;
> >> 
> >> If this is correct, it might be better to rename all the
> >> uses of failed_req to failed_get and delete label failed_req.
> > 
> > As I replied to Walter Harms, I believe it is correct, because I don't see 
> > anything in the called functions that needs to be freed.  I can redo the 
> > patch to eliminate the label.
> 
> Please do.

OK, I will do it tomorrow.

julia
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