[ALSA] Fix __devinit and __devexit issues with sound drivers

Fix __devinit and __devexit issues with sound drivers.
Resolves MODPOST warnings similar to:
WARNING: sound/drivers/snd-dummy.o - Section mismatch: reference to .init.text:snd_dummy_probe from .data.rel.local between 'snd_dummy_driver' (at offset 0x0) and 'snd_dummy_controls'
WARNING: sound/drivers/snd-mtpav.o - Section mismatch: reference to .init.text:snd_mtpav_probe from .data.rel.local between 'snd_mtpav_driver' (at offset 0x0) and 'snd_mtpav_input'
WARNING: sound/drivers/snd-virmidi.o - Section mismatch: reference to .init.text:snd_virmidi_probe from .data.rel.local after 'snd_virmidi_driver' (at offset 0x0)

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index dede954..28db4be 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -305,7 +305,7 @@
 #define pxa2xx_ac97_resume	NULL
 #endif
 
-static int pxa2xx_ac97_probe(struct platform_device *dev)
+static int __devinit pxa2xx_ac97_probe(struct platform_device *dev)
 {
 	struct snd_card *card;
 	struct snd_ac97_bus *ac97_bus;
@@ -369,7 +369,7 @@
 	return ret;
 }
 
-static int pxa2xx_ac97_remove(struct platform_device *dev)
+static int __devexit pxa2xx_ac97_remove(struct platform_device *dev)
 {
 	struct snd_card *card = platform_get_drvdata(dev);
 
@@ -386,7 +386,7 @@
 
 static struct platform_driver pxa2xx_ac97_driver = {
 	.probe		= pxa2xx_ac97_probe,
-	.remove		= pxa2xx_ac97_remove,
+	.remove		= __devexit_p(pxa2xx_ac97_remove),
 	.suspend	= pxa2xx_ac97_suspend,
 	.resume		= pxa2xx_ac97_resume,
 	.driver		= {