commit e6bbe666673ab044a3d39ddb74e4d9a401cf1d6f
author Takashi Iwai <tiwai@suse.de> Thu Oct 24 01:20:24 2013 +0200
committer Takashi Iwai <tiwai@suse.de> Thu Oct 24 09:21:45 2013 +0200
tree e1c681dfe1d213c2d8833dcf7290832d654faebf
parent d7f8761b6614d2d3695dd57d27d0b2f952777648

ALSA: hda - Fix unbalanced runtime PM refcount after S3/S4

When a machine goes to S3/S4 after power-save is enabled, the runtime
PM refcount might be incorrectly decreased because the power-down
triggered soon after resume assumes that the controller was already
powered up, and issues the pm_notify down.

This patch fixes the incorrect pm_notify call simply by checking the
current value properly.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>