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From: Joe Perches <joe@perches.com>
To: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>,
	Andreas Dilger <andreas.dilger@intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, HPDD-discuss@ml01.01.org,
	devel@driverdev.osuosl.org
Subject: Re: [PATCH 2/2] staging: lustre: lov: remove always false condition
Date: Tue, 08 Sep 2015 09:53:09 -0700	[thread overview]
Message-ID: <1441731189.17219.1.camel@perches.com> (raw)
In-Reply-To: <1441729382-27865-2-git-send-email-sudipm.mukherjee@gmail.com>

On Tue, 2015-09-08 at 21:53 +0530, Sudip Mukherjee wrote:
> The member qc_idx of struct if_quotactl is unsigned and hence it can
> never be less than zero.
[]
> diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
[]
> @@ -1487,7 +1487,7 @@ static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
>  		struct obd_quotactl *oqctl;
>  
>  		if (qctl->qc_valid == QC_OSTIDX) {
> -			if (qctl->qc_idx < 0 || count <= qctl->qc_idx)
> +			if (count <= qctl->qc_idx)

Perhaps this test would be clearer reversed too

			if (qctl->qc_idx >= count)

>  				return -EINVAL;



  reply	other threads:[~2015-09-08 16:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-08 16:23 [PATCH 1/2] staging: lustre: lov: fix dereference of ERR_PTR Sudip Mukherjee
2015-09-08 16:23 ` [PATCH 2/2] staging: lustre: lov: remove always false condition Sudip Mukherjee
2015-09-08 16:53   ` Joe Perches [this message]
2015-09-08 17:42     ` Sudip Mukherjee

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