linux-kernel - Re: [PATCH v2] wireless: wl12xx, fix lock imbalance

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Date:	Wed, 15 Jul 2009 08:41:13 +0300
From:	Luciano Coelho <luciano.coelho@...ia.com>
To:	ext Jiri Slaby <jirislaby@...il.com>
CC:	"linville@...driver.com" <linville@...driver.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] wireless: wl12xx, fix lock imbalance

ext Jiri Slaby wrote:
> Add omitted mutex_unlock to one of wl12xx_op_start fail paths (when
> wl12xx_chip_wakeup fails).
>
> [v2]
> Power off the device, because:
> \= cite from http://marc.info/?l=linux-kernel&m=124755028209880&w=2
> If the chip cannot be booted, why should it remain powered on?
> In some rare cases, the chip might fail to initialize, but can
> recover if powered off and on again, so turning it off at this
> point is the right thing to do. =/
>
> Signed-off-by: Jiri Slaby <jirislaby@...il.com>
> ---
>   

Looks good now.  Thanks!

Reviewed-by: Luciano Coelho <luciano.coelho@...ia.com>

>  drivers/net/wireless/wl12xx/main.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
> index 603d611..d30683c 100644
> --- a/drivers/net/wireless/wl12xx/main.c
> +++ b/drivers/net/wireless/wl12xx/main.c
> @@ -336,7 +336,7 @@ static int wl12xx_op_start(struct ieee80211_hw *hw)
>  
>  	ret = wl12xx_chip_wakeup(wl);
>  	if (ret < 0)
> -		return ret;
> +		goto out;
>  
>  	ret = wl->chip.op_boot(wl);
>  	if (ret < 0)
>   


-- 
Cheers,
Luca.

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