[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/serial-u16550.c b/sound/drivers/serial-u16550.c
index 3a86a58..838a427 100644
--- a/sound/drivers/serial-u16550.c
+++ b/sound/drivers/serial-u16550.c
@@ -327,7 +327,7 @@
  *  return 0 if found
  *  return negative error if not found
  */
-static int __init snd_uart16550_detect(struct snd_uart16550 *uart)
+static int __devinit snd_uart16550_detect(struct snd_uart16550 *uart)
 {
 	unsigned long io_base = uart->base;
 	int ok;
@@ -781,7 +781,7 @@
 	return snd_uart16550_free(uart);
 }
 
-static int __init snd_uart16550_create(struct snd_card *card,
+static int __devinit snd_uart16550_create(struct snd_card *card,
 				       unsigned long iobase,
 				       int irq,
 				       unsigned int speed,
@@ -860,7 +860,7 @@
 	return 0;
 }
 
-static void __init snd_uart16550_substreams(struct snd_rawmidi_str *stream)
+static void __devinit snd_uart16550_substreams(struct snd_rawmidi_str *stream)
 {
 	struct snd_rawmidi_substream *substream;
 
@@ -869,7 +869,7 @@
 	}
 }
 
-static int __init snd_uart16550_rmidi(struct snd_uart16550 *uart, int device,
+static int __devinit snd_uart16550_rmidi(struct snd_uart16550 *uart, int device,
 				      int outs, int ins,
 				      struct snd_rawmidi **rmidi)
 {
@@ -896,7 +896,7 @@
 	return 0;
 }
 
-static int __init snd_serial_probe(struct platform_device *devptr)
+static int __devinit snd_serial_probe(struct platform_device *devptr)
 {
 	struct snd_card *card;
 	struct snd_uart16550 *uart;
@@ -981,7 +981,7 @@
 	return err;
 }
 
-static int snd_serial_remove(struct platform_device *devptr)
+static int __devexit snd_serial_remove(struct platform_device *devptr)
 {
 	snd_card_free(platform_get_drvdata(devptr));
 	platform_set_drvdata(devptr, NULL);
@@ -992,7 +992,7 @@
 
 static struct platform_driver snd_serial_driver = {
 	.probe		= snd_serial_probe,
-	.remove		= snd_serial_remove,
+	.remove		= __devexit_p( snd_serial_remove),
 	.driver		= {
 		.name	= SND_SERIAL_DRIVER
 	},