[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/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 2adbd00..35ac187 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -1046,7 +1046,7 @@
 
 	// release the irq
 	if (chip->irq >= 0)
-		free_irq(chip->irq, (void *)chip);
+		free_irq(chip->irq, chip);
 	pci_disable_device(chip->pci);
 	kfree(chip);
 	return 0;
@@ -1267,8 +1267,7 @@
 	}
 
 	if (request_irq(pci->irq, snd_ca0106_interrupt,
-			IRQF_DISABLED|IRQF_SHARED, "snd_ca0106",
-			(void *)chip)) {
+			IRQF_SHARED, "snd_ca0106", chip)) {
 		snd_ca0106_free(chip);
 		printk(KERN_ERR "cannot grab irq\n");
 		return -EBUSY;