[PATCH] Fix ALSA resume

Some time ago, a patch was merged that removed pci_save_state() and
pci_restore_state() from various ALSA drivers. That patch also added
pci_restore_state() to sound/core/init.c but didn't add pci_save_state()
anywhere. This is needed since the core pci handling doesn't do this for
us anymore.

My laptop doesn't resume (gets what I assume is an ACPI timeout and
hangs solid) without this small obvious patch.
Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se>
Fixed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

sound/core/init.c

@@ -785,12 +785,15 @@ int snd_card_set_dev_pm_callback(snd_card_t *card, int type,
 int snd_card_pci_suspend(struct pci_dev *dev, u32 state)
 {
 	snd_card_t *card = pci_get_drvdata(dev);
+	int err;
 	if (! card || ! card->pm_suspend)
 		return 0;
 	if (card->power_state == SNDRV_CTL_POWER_D3hot)
 		return 0;
 	/* FIXME: correct state value? */
-	return card->pm_suspend(card, 0);
+	err = card->pm_suspend(card, 0);
+	pci_save_state(dev);
+	return err;
 }
 
 int snd_card_pci_resume(struct pci_dev *dev)