linux-kernel - Re: [PATCH] scsi: be_iscsi: fix possible memory leak and refactor code

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Message-ID: <1384717371.2050.2.camel@dabdike.int.hansenpartnership.com>
Date:	Sun, 17 Nov 2013 11:42:51 -0800
From:	James Bottomley <James.Bottomley@...senPartnership.com>
To:	"Geyslan G. Bem" <geyslan@...il.com>
Cc:	Jayamohan Kallickal <jayamohan.kallickal@...lex.com>,
	"open list:SERVER ENGINES 10..." <linux-scsi@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] scsi: be_iscsi: fix possible memory leak and refactor
 code

On Sun, 2013-11-17 at 15:51 -0300, Geyslan G. Bem wrote:
> This patch fix memory leakage in cases 'ISCSI_NET_PARAM_VLAN_ID' and
> 'ISCSI_NET_PARAM_VLAN_PRIORITY' and refactors code 'going out' when
> necessary.

You pointlessly renamed a variable, which makes the diff hard to read.
Please don't do that.

You missed the fact that the passed in pointer is unmodified if
mgmt_get_if_info() returns non zero, so the kfree frees junk and would
oops.

There's no need for a goto; len = -EINVAL; does everything that's
needed.

James


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