linux-kernel - Re: [PATCH] physmap: Fix leak of memory returned by parse_mtd

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Date:	Wed, 12 Nov 2008 11:08:00 -0500
From:	"Mike Frysinger" <vapier.adi@...il.com>
To:	"Atsushi Nemoto" <anemo@....ocn.ne.jp>
Cc:	linux-mtd@...ts.infradead.org, dwmw2@...radead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] physmap: Fix leak of memory returned by parse_mtd_partitions

On Wed, Nov 12, 2008 at 10:55, Atsushi Nemoto wrote:
> On Wed, 12 Nov 2008 23:57:33 +0900 (JST), Atsushi Nemoto wrote:
>> The mtd partition parser returns an allocated pointer array of
>> mtd_partition.  The caller must free it.  The array is used only for
>> add_mtd_partitions(), so free it just after the call.
>>
>> Signed-off-by: Atsushi Nemoto <anemo@....ocn.ne.jp>
>> ---
>>  drivers/mtd/maps/physmap.c |   17 ++++++++---------
>>  1 files changed, 8 insertions(+), 9 deletions(-)
>
> And many other callers of parse_mtd_partitions() also do not free the
> returned memory.  With a quick look, 21 of 36 have same defect.

i wonder why we duplicate this same code block in so many places.  and
why does every driver have to declare its own list of parsers ?  cant
we unify all of these in one place ?

> drivers/mtd/maps/bfin-async-flash.c

i can fix this one if no one else gets to it
-mikex
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