ALSA: Add missing __devexit_p() markers

3 ISA sound drivers lack their __devexit_p() markers, which would
cause build failures when the kernel is built without hotplug support.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/isa/es1688/es1688.c

@@ -193,7 +193,7 @@ static int __devexit snd_es1688_remove(struct device *dev, unsigned int n)
 static struct isa_driver snd_es1688_driver = {
 	.match		= snd_es1688_match,
 	.probe		= snd_es1688_probe,
-	.remove		= snd_es1688_remove,
+	.remove		= __devexit_p(snd_es1688_remove),
 #if 0	/* FIXME */
 	.suspend	= snd_es1688_suspend,
 	.resume		= snd_es1688_resume,

sound/isa/gus/gusextreme.c

@@ -348,7 +348,7 @@ static int __devexit snd_gusextreme_remove(struct device *dev, unsigned int n)
 static struct isa_driver snd_gusextreme_driver = {
 	.match		= snd_gusextreme_match,
 	.probe		= snd_gusextreme_probe,
-	.remove		= snd_gusextreme_remove,
+	.remove		= __devexit_p(snd_gusextreme_remove),
 #if 0	/* FIXME */
 	.suspend	= snd_gusextreme_suspend,
 	.resume		= snd_gusextreme_resume,

sound/parisc/harmony.c

@@ -1020,7 +1020,7 @@ static struct parisc_driver snd_harmony_driver = {
 	.name = "harmony",
 	.id_table = snd_harmony_devtable,
 	.probe = snd_harmony_probe,
-	.remove = snd_harmony_remove,
+	.remove = __devexit_p(snd_harmony_remove),
 };
 
 static int __init