linux-kernel - Re: [PATCH] libata: remove superfluous NULL pointer checks

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] [day] [month] [year] [list]

Date:	Tue, 28 Jul 2009 21:10:23 -0400
From:	Jeff Garzik <jgarzik@...ox.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
CC:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Dan Carpenter <error27@...il.com>, corbet@....net,
	eteo@...hat.com
Subject: Re: [PATCH] libata: remove superfluous NULL pointer checks

Bartlomiej Zolnierkiewicz wrote:
> From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> Subject: [PATCH] libata: remove superfluous NULL pointer checks
> 
> host->ports[] always contain pointers to valid port structures since
> a "dummy port" structure is used in case if there is no physical port.
> 
> This patch takes care of two entries from Dan's list:
> 
> drivers/ata/sata_sil.c +535 sil_interrupt(13) warning: variable derefenced before check 'ap'
> drivers/ata/sata_mv.c +2517 mv_unexpected_intr(6) warning: variable derefenced before check 'ap'
> 
> and of another needless NULL pointer check in pata_octeon_cf.c.
> 
> Reported-by: Dan Carpenter <error27@...il.com>
> Cc: corbet@....net
> Cc: eteo@...hat.com
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> ---
>  drivers/ata/pata_octeon_cf.c |    3 ++-
>  drivers/ata/sata_mv.c        |    2 +-
>  drivers/ata/sata_sil.c       |    2 +-
>  3 files changed, 4 insertions(+), 3 deletions(-)

applied to #upstream-fixes


--
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/