From 2f93d797ea92113a73c72728c475455cb1409fb3 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Fri, 22 Feb 2008 18:47:44 +0100
Subject: [PATCH] [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>
---
sound/pci/bt87x.c | 9 +++------
1 file 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);