[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/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index 532c56e..4f55fc3 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -92,7 +92,7 @@
 
 #define PFX	"gusextreme: "
 
-static int __init snd_gusextreme_detect(int dev,
+static int __devinit snd_gusextreme_detect(int dev,
 					struct snd_card *card,
 					struct snd_gus_card * gus,
 					struct snd_es1688 *es1688)
@@ -142,12 +142,12 @@
 	return 0;
 }
 
-static void __init snd_gusextreme_init(int dev, struct snd_gus_card * gus)
+static void __devinit snd_gusextreme_init(int dev, struct snd_gus_card * gus)
 {
 	gus->joystick_dac = joystick_dac[dev];
 }
 
-static int __init snd_gusextreme_mixer(struct snd_es1688 *chip)
+static int __devinit snd_gusextreme_mixer(struct snd_es1688 *chip)
 {
 	struct snd_card *card = chip->card;
 	struct snd_ctl_elem_id id1, id2;
@@ -169,7 +169,7 @@
 	return 0;
 }
 
-static int __init snd_gusextreme_probe(struct platform_device *pdev)
+static int __devinit snd_gusextreme_probe(struct platform_device *pdev)
 {
 	int dev = pdev->id;
 	static int possible_ess_irqs[] = {5, 9, 10, 7, -1};
@@ -321,7 +321,7 @@
 	return err;
 }
 
-static int snd_gusextreme_remove(struct platform_device *devptr)
+static int __devexit snd_gusextreme_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
@@ -332,7 +332,7 @@
 
 static struct platform_driver snd_gusextreme_driver = {
 	.probe		= snd_gusextreme_probe,
-	.remove		= snd_gusextreme_remove,
+	.remove		= __devexit_p(snd_gusextreme_remove),
 	/* FIXME: suspend/resume */
 	.driver		= {
 		.name	= GUSEXTREME_DRIVER