[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/drivers/dummy.c b/sound/drivers/dummy.c
index 8339bad..a0f28f5 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -423,7 +423,8 @@
 	.pointer =		snd_card_dummy_pcm_pointer,
 };
 
-static int __init snd_card_dummy_pcm(struct snd_dummy *dummy, int device, int substreams)
+static int __devinit snd_card_dummy_pcm(struct snd_dummy *dummy, int device,
+					int substreams)
 {
 	struct snd_pcm *pcm;
 	int err;
@@ -562,7 +563,7 @@
 DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_CD)
 };
 
-static int __init snd_card_dummy_new_mixer(struct snd_dummy *dummy)
+static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy)
 {
 	struct snd_card *card = dummy->card;
 	unsigned int idx;
@@ -579,7 +580,7 @@
 	return 0;
 }
 
-static int __init snd_dummy_probe(struct platform_device *devptr)
+static int __devinit snd_dummy_probe(struct platform_device *devptr)
 {
 	struct snd_card *card;
 	struct snd_dummy *dummy;
@@ -617,7 +618,7 @@
 	return err;
 }
 
-static int snd_dummy_remove(struct platform_device *devptr)
+static int __devexit snd_dummy_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
@@ -648,7 +649,7 @@
 
 static struct platform_driver snd_dummy_driver = {
 	.probe		= snd_dummy_probe,
-	.remove		= snd_dummy_remove,
+	.remove		= __devexit_p(snd_dummy_remove),
 #ifdef CONFIG_PM
 	.suspend	= snd_dummy_suspend,
 	.resume		= snd_dummy_resume,