[ALSA] Remove delayed work properly at free and suspend

Remove delayed work properly at free and suspend in ac97 codec and
ak4114 drivers.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

sound/i2c/other/ak4114.c

@@ -66,6 +66,7 @@ static void snd_ak4114_free(struct ak4114 *chip)
 {
 	chip->init = 1;	/* don't schedule new work */
 	mb();
+	cancel_delayed_work(&chip->work);
 	flush_scheduled_work();
 	kfree(chip);
 }
@@ -97,6 +98,7 @@ int snd_ak4114_create(struct snd_card *card,
 	chip->read = read;
 	chip->write = write;
 	chip->private_data = private_data;
+	INIT_DELAYED_WORK(&chip->work, ak4114_stats);
 
 	for (reg = 0; reg < 7; reg++)
 		chip->regmap[reg] = pgm[reg];
@@ -149,7 +151,6 @@ void snd_ak4114_reinit(struct ak4114 *chip)
 	reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN);
 	/* bring up statistics / event queing */
 	chip->init = 0;
-	INIT_DELAYED_WORK(&chip->work, ak4114_stats);
 	schedule_delayed_work(&chip->work, HZ / 10);
 }
 

sound/pci/ac97/ac97_codec.c

@@ -990,6 +990,7 @@ static int snd_ac97_free(struct snd_ac97 *ac97)
 	if (ac97) {
 #ifdef CONFIG_SND_AC97_POWER_SAVE
 		cancel_delayed_work(&ac97->power_work);
+		flush_scheduled_work();
 #endif
 		snd_ac97_proc_done(ac97);
 		if (ac97->bus)
@@ -2415,6 +2416,10 @@ void snd_ac97_suspend(struct snd_ac97 *ac97)
 		return;
 	if (ac97->build_ops->suspend)
 		ac97->build_ops->suspend(ac97);
+#ifdef CONFIG_SND_AC97_POWER_SAVE
+	cancel_delayed_work(&ac97->power_work);
+	flush_scheduled_work();
+#endif
 	snd_ac97_powerdown(ac97);
 }