[ALSA] bt87X: fix freeing of shared interrupt

Call free_irq() after iounmap() because other devices could trigger our
shared interrupt handler.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 6 deletions

diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index c9a2421cf6f0..4ecdd635ed1d 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -681,15 +681,12 @@ static struct snd_kcontrol_new snd_bt87x_capture_source = {
 
 static int snd_bt87x_free(struct snd_bt87x *chip)
 {
-        if (chip->mmio) {
+        if (chip->mmio)
                 snd_bt87x_stop(chip);
-                if (chip->irq >= 0)
-                        synchronize_irq(chip->irq);
-
-                iounmap(chip->mmio);
-        }
         if (chip->irq >= 0)
                 free_irq(chip->irq, chip);
+        if (chip->mmio)
+                iounmap(chip->mmio);
         pci_release_regions(chip->pci);
         pci_disable_device(chip->pci);
         kfree(chip);