[ALSA] Remove IRQF_DISABLED for shared PCI irqs

Fix IRQ flags for PCI devices.
The shared IRQs for PCI devices shouldn't be allocated with
IRQF_DISABLED.  Also, when MSI is enabled, IRQF_SHARED shouldn't
be used.
The patch removes unnecessary cast in request_irq and free_irq,
too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index 1a8d36d..66ac26c 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1508,7 +1508,7 @@
 	}
 
 	if (request_irq(pci->irq, snd_es1938_interrupt,
-			IRQF_DISABLED|IRQF_SHARED, "ES1938", chip)) {
+			IRQF_SHARED, "ES1938", chip)) {
 		printk(KERN_ERR "es1938: unable to grab IRQ %d, "
 		       "disabling device\n", pci->irq);
 		snd_card_disconnect(card);
@@ -1631,7 +1631,7 @@
 	chip->vc_port = pci_resource_start(pci, 2);
 	chip->mpu_port = pci_resource_start(pci, 3);
 	chip->game_port = pci_resource_start(pci, 4);
-	if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_DISABLED|IRQF_SHARED,
+	if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_SHARED,
 			"ES1938", chip)) {
 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
 		snd_es1938_free(chip);