From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 10 Oct 2014 17:51:54 +0000 (-0700)
Subject: net: systemport: avoid unbalanced enable_irq_wake calls
X-Git-Tag: fixes-against-v3.18-rc2~115^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=61b423a8a0bd9aeaa046f9a24bed42e3a953a936;p=pandora-kernel.git

net: systemport: avoid unbalanced enable_irq_wake calls

Multiple enable_irq_wake() calls will keep increasing the IRQ
wake_depth, which ultimately leads to the following types of
situation:

1) enable Wake-on-LAN interrupt w/o password
2) enable Wake-on-LAN interrupt w/ password
3) enable Wake-on-LAN interrupt w/o password
4) disable Wake-on-LAN interrupt

After step 4), SYSTEMPORT would always wake-up the system no matter what
wake-up device we use, which is not what we want. Fix this by making
sure there are no unbalanced enable_irq_wake() calls.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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