linux-kernel - Re: [PATCH v2] staging: ced401: fix double unlock bug

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Message-ID: <20140224103151.GO26776@mwanda>
Date:	Mon, 24 Feb 2014 13:31:51 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Daeseok Youn <daeseok.youn@...il.com>
Cc:	gregkh@...uxfoundation.org, ufimtseva@...il.com,
	paul.gortmaker@...driver.com, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] staging: ced401: fix double unlock bug

On Mon, Feb 24, 2014 at 07:23:15PM +0900, Daeseok Youn wrote:
> 
> After spin_lock() is called, all of if-else conditions in this brace
> should reach the end of else and spin_unlock() must be called.
> So It doesn't need to call spin_unlock() without a return statement
> for handling an error.
> 
> Also sparse says:
> drivers/staging/ced1401/usb1401.c:1080:28: warning:
>  context imbalance in 'Handle1401Esc' - unexpected unlock
> 

Thank you.

Reviewed-by: Dan Carpenter <dan.carpenter@...cle.com>

regards,
dan carpenter

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