[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/trident/trident_main.c b/sound/pci/trident/trident_main.c
index 89fe576..474f2d4 100644
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -3608,7 +3608,7 @@
 	}
 	trident->port = pci_resource_start(pci, 0);
 
-	if (request_irq(pci->irq, snd_trident_interrupt, IRQF_DISABLED|IRQF_SHARED,
+	if (request_irq(pci->irq, snd_trident_interrupt, IRQF_SHARED,
 			"Trident Audio", trident)) {
 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
 		snd_trident_free(trident);