[PATCH] i810_audio: Fix the error path of resource management

The patch adds the check of return value from resquest_region() to avoid
the confliction of resource management with ALSA intel8x0 driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

sound/oss/i810_audio.c

@@ -3216,8 +3216,14 @@ static int __devinit i810_probe(struct pci_dev *pci_dev, const struct pci_device
 	}
 
 	/* claim our iospace and irq */
-	request_region(card->iobase, 64, card_names[pci_id->driver_data]);
-	request_region(card->ac97base, 256, card_names[pci_id->driver_data]);
+	if (!request_region(card->iobase, 64, card_names[pci_id->driver_data])) {
+		printk(KERN_ERR "i810_audio: unable to allocate region %lx\n", card->iobase);
+		goto out_region1;
+	}
+	if (!request_region(card->ac97base, 256, card_names[pci_id->driver_data])) {
+		printk(KERN_ERR "i810_audio: unable to allocate region %lx\n", card->ac97base);
+		goto out_region2;
+	}
 
 	if (request_irq(card->irq, &i810_interrupt, SA_SHIRQ,
 			card_names[pci_id->driver_data], card)) {
@@ -3291,7 +3297,9 @@ static int __devinit i810_probe(struct pci_dev *pci_dev, const struct pci_device
 	}
 out_pio:	
 	release_region(card->iobase, 64);
+out_region2:
 	release_region(card->ac97base, 256);
+out_region1:
 	pci_free_consistent(pci_dev, sizeof(struct i810_channel)*NR_HW_CH,
 	    card->channel, card->chandma);
 out_mem: