[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/es1968.c b/sound/pci/es1968.c
index 01c521d..dc84c18 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -2462,7 +2462,7 @@
 	}
 
 	if (chip->irq >= 0)
-		free_irq(chip->irq, (void *)chip);
+		free_irq(chip->irq, chip);
 	snd_es1968_free_gameport(chip);
 	chip->master_switch = NULL;
 	chip->master_volume = NULL;
@@ -2552,8 +2552,8 @@
 		return err;
 	}
 	chip->io_port = pci_resource_start(pci, 0);
-	if (request_irq(pci->irq, snd_es1968_interrupt, IRQF_DISABLED|IRQF_SHARED,
-			"ESS Maestro", (void*)chip)) {
+	if (request_irq(pci->irq, snd_es1968_interrupt, IRQF_SHARED,
+			"ESS Maestro", chip)) {
 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
 		snd_es1968_free(chip);
 		return -EBUSY;