[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/isa/sb/sb8.c b/sound/isa/sb/sb8.c
index 268ebd3..be1e83e 100644
--- a/sound/isa/sb/sb8.c
+++ b/sound/isa/sb/sb8.c
@@ -83,7 +83,7 @@
 	release_and_free_resource(acard->fm_res);
 }
 
-static int __init snd_sb8_probe(struct platform_device *pdev)
+static int __devinit snd_sb8_probe(struct platform_device *pdev)
 {
 	int dev = pdev->id;
 	struct snd_sb *chip;
@@ -193,7 +193,7 @@
 	return err;
 }
 
-static int snd_sb8_remove(struct platform_device *pdev)
+static int __devexit snd_sb8_remove(struct platform_device *pdev)
 {
 	snd_card_free(platform_get_drvdata(pdev));
 	platform_set_drvdata(pdev, NULL);
@@ -230,7 +230,7 @@
 
 static struct platform_driver snd_sb8_driver = {
 	.probe		= snd_sb8_probe,
-	.remove		= snd_sb8_remove,
+	.remove		= __devexit_p(snd_sb8_remove),
 #ifdef CONFIG_PM
 	.suspend	= snd_sb8_suspend,
 	.resume		= snd_sb8_resume,