linux-kernel - RE: [PATCH] igb: Fix a deadlock in igb_sriov

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Message-ID: <309B89C4C689E141A5FF6A0C5FB2118B81AE3594@ORSMSX101.amr.corp.intel.com>
Date:	Tue, 11 Aug 2015 02:06:54 +0000
From:	"Brown, Aaron F" <aaron.f.brown@...el.com>
To:	Jia-Ju Bai <baijiaju1990@....com>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
CC:	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] igb: Fix a deadlock in igb_sriov_reinit

> From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org]
> On Behalf Of Jia-Ju Bai
> Sent: Sunday, August 02, 2015 8:36 PM
> To: Kirsher, Jeffrey T; Brandeburg, Jesse
> Cc: intel-wired-lan@...ts.osuosl.org; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; Jia-Ju Bai
> Subject: [PATCH] igb: Fix a deadlock in igb_sriov_reinit
> 
> When igb_init_interrupt_scheme in igb_sriov_reinit is failed, the lock
> acquired by rtnl_lock() is not released, which causes a deadlock.
> This patch adds rtnl_unlock() in error handling to fix it.
> 
> Signed-off-by: Jia-Ju Bai <baijiaju1990@....com>
> ---
>  drivers/net/ethernet/intel/igb/igb_main.c |    1 +
>  1 file changed, 1 insertion(+)

Tested-by: Aaron Brown <aaron.f.brown@...el.com>
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