linux-kernel - Re: UBI: Fastmap request for inclusion (v19)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 03 Oct 2012 11:03:20 +0200
From:	Richard Weinberger <richard@....at>
To:	artem.bityutskiy@...ux.intel.com
CC:	Heinz.Egger@...utronix.de, tglx@...utronix.de,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	tim.bird@...sony.com
Subject: Re: UBI: Fastmap request for inclusion (v19)

On 03.10.2012 10:44, Artem Bityutskiy wrote:
> On Wed, 2012-10-03 at 10:36 +0200, Richard Weinberger wrote:
>> Am Wed, 03 Oct 2012 11:25:45 +0300
>> schrieb Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>:
>>
>>> On Wed, 2012-09-26 at 17:51 +0200, Richard Weinberger wrote:
>>>> UBI Fastmap is an optional feature which stores the physical to
>>>> logical eraseblock relations in a checkpoint (called fastmap) to
>>>> reduce the initialization time of UBI. The current init time of UBI
>>>> is proportional to the number of physical erase blocks on the FLASH
>>>> device. With fastmap enabled the scan time is limited to a fixed
>>>> number of blocks.
>>>
>>> Aiaiai complains and linux-next build fails :-( Last time I forgot to
>>> enable the fastmap kbuild option so aiaiai checked with that option
>>> disabled. Now I enabled it with a simple hack (default n -> default y)
>>> and here are aiaiai's complaints - there is a build failure for
>>> ARCH=i386.
>>
>> Build fix for linux-next is on the way into your inbox.
>> I'm currently looking at the aiaiai output.
>
> OK, I see, goto out is missing after line 919. Please, send a short fix
> - I'll squash it in. But general error-path rework is needed for this
> function, may be separately.
>

Yeah, it looks like all issues reported by aiaiai are caused by the missing goto.
Can you deal with the patch below or do you want me to send it using git send-email?

Thanks,
//richard

---
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index be73a1d..adcb2e4 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -917,6 +917,7 @@ int ubi_scan_fastmap(struct ubi_device *ubi, struct ubi_attach_info *ai,
  		ret = UBI_BAD_FASTMAP;
  		kfree(fmsb);
  		kfree(fm);
+		goto out;
  	}

  	ech = kzalloc(ubi->ec_hdr_alsize, GFP_KERNEL);

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/