linux-kernel - Re: [patch 2/2] memstick: memory leak on error in msb_ftl

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Date:	Sun, 30 Sep 2012 00:14:44 +0200
From:	Maxim Levitsky <maximlevitsky@...il.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jens Axboe <axboe@...nel.dk>
Subject: Re: [patch 2/2] memstick: memory leak on error in msb_ftl_scan()

On Sun, 2012-09-30 at 00:10 +0200, Maxim Levitsky wrote: 
> On Sat, 2012-09-29 at 10:11 +0300, Dan Carpenter wrote: 
> > We need to free "overwrite_flags" before returning.
> > 
> > Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
> > 
> > diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
> > index a8e8915..1f9d5cf 100644
> > --- a/drivers/memstick/core/ms_block.c
> > +++ b/drivers/memstick/core/ms_block.c
> > @@ -1408,8 +1408,10 @@ static int msb_ftl_scan(struct msb_data *msb)
> >  			msb_mark_block_used(msb, pba);
> >  			msb_erase_block(msb, pba);
> >  			continue;
> > -		} else if (error)
> > +		} else if (error) {
> > +			kfree(overwrite_flags);
> >  			return error;
> > +		}
> >  
> >  		lba = be16_to_cpu(extra.logical_address);
> >  		managment_flag = extra.management_flag;
> 
> Indeed. I need to be more careful with this,
> I'll do another review of the code, maybe I spot anything else.
> 
> Acked-by: Maxim Levitsky <maximlevitsly@...il.com>
maximlevitsky@...il.com> :-(




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