[ALSA] Fix races in irq handler and ioremap

Call ioremap before request_irq for avoiding possible races
in the irq handler.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 6 insertions, 6 deletions

diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index 4dd53bfe0308..2cb9fe98db2f 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -1368,18 +1368,18 @@ static int __devinit snd_rme32_create(struct rme32 * rme32)
                 return err;
         rme32->port = pci_resource_start(rme32->pci, 0);
 
-        if (request_irq(pci->irq, snd_rme32_interrupt, SA_INTERRUPT | SA_SHIRQ, "RME32", (void *) rme32)) {
-                snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
-                return -EBUSY;
-        }
-        rme32->irq = pci->irq;
-
         if ((rme32->iobase = ioremap_nocache(rme32->port, RME32_IO_SIZE)) == 0) {
                 snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n",
                            rme32->port, rme32->port + RME32_IO_SIZE - 1);
                 return -ENOMEM;
         }
 
+        if (request_irq(pci->irq, snd_rme32_interrupt, SA_INTERRUPT | SA_SHIRQ, "RME32", (void *) rme32)) {
+                snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
+                return -EBUSY;
+        }
+        rme32->irq = pci->irq;
+
         /* read the card's revision number */
         pci_read_config_byte(pci, 8, &rme32->rev);