From 61132bf7fbe3a802df1f68ad08e8ca10d6b30ddc Mon Sep 17 00:00:00 2001
From: Marcelo Leitner <mleitner@redhat.com>
Date: Fri, 30 Jan 2015 09:56:01 -0200
Subject: [PATCH] qlge: Fix qlge_update_hw_vlan_features to handle if interface
 is down

Currently qlge_update_hw_vlan_features() will always first put the
interface down, then update features and then bring it up again. But it
is possible to hit this code while the adapter is down and this causes a
non-paired call to napi_disable(), which will get stuck.

This patch fixes it by skipping these down/up actions if the interface
is already down.

Fixes: a45adbe8d352 ("qlge: Enhance nested VLAN (Q-in-Q) handling.")
Cc: Harish Patil <harish.patil@qlogic.com>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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