linux-kernel - Re: [PATCH] infiniband:core:Add needed error path in cm_init_av_by

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Date:	Mon, 7 Dec 2015 07:57:33 +0000
From:	Haggai Eran <haggaie@...lanox.com>
To:	Nicholas Krause <xerofoify@...il.com>,
	"dledford@...hat.com" <dledford@...hat.com>
CC:	"sean.hefty@...el.com" <sean.hefty@...el.com>,
	"hal.rosenstock@...il.com" <hal.rosenstock@...il.com>,
	"jgunthorpe@...idianresearch.com" <jgunthorpe@...idianresearch.com>,
	Matan Barak <matanb@...lanox.com>,
	"yun.wang@...fitbricks.com" <yun.wang@...fitbricks.com>,
	"ted.h.kim@...cle.com" <ted.h.kim@...cle.com>,
	Doron Tsur <doront@...lanox.com>,
	Erez Shitrit <erezsh@...lanox.com>,
	"david.ahern@...cle.com" <david.ahern@...cle.com>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] infiniband:core:Add needed error path in
 cm_init_av_by_path

On Friday, December 4, 2015 8:02 PM, Nicholas Krause <xerofoify@...il.com> wrote:
> To: dledford@...hat.com
> Cc: sean.hefty@...el.com; hal.rosenstock@...il.com; Haggai Eran; jgunthorpe@...idianresearch.com; Matan Barak; yun.wang@...fitbricks.com; ted.h.kim@...cle.com; Doron Tsur; Erez Shitrit; david.ahern@...cle.com; linux-rdma@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: [PATCH] infiniband:core:Add needed error path in cm_init_av_by_path
> 
> This adds a needed error path in the function, cm_init_av_by_path
> after the call to ib_init_ah_from_path in order to avoid incorrectly
> accessing the path pointer of structure type ib_sa_path_rec if this
> function call fails to complete its intended work successfully by
> returning a error code.
> 
> Signed-off-by: Nicholas Krause <xerofoify@...il.com>

The subject doesn't seem to match the convention but apart from that,

Reviewed-by: Haggai Eran <haggaie@...lanox.com>

I wonder if this should go to stable. If I understand correctly, this will fail only when the SGID isn't found in the GID table, but such connections would fail later on when creating a QP, right?

Haggai--
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