From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Fri, 25 Dec 2009 06:50:23 +0000 (-0800)
Subject: Input: matrix-keypad - handle cases when GPIOs can't be wakeup sources
X-Git-Tag: v2.6.33-rc3~31^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dd219234d201431d0fc56a74e3a4a97ca3eb4589;p=pandora-kernel.git

Input: matrix-keypad - handle cases when GPIOs can't be wakeup sources

On certain boards not all GPIOs may be used as wakeup sources, in which
case some of enable_irq_wake() calls will fail. On resume calling
disable_irq_wake() will warn about unbalanced IRQ wake disable.

Solve this by checking whether enable_irq_wake() succeeded or not and
no not call disable_irq_wake() for these GPIOs/IRQs that have not been
enabled.

Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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