From: Clemens Ladisch <clemens@ladisch.de>
Date: Fri, 22 Feb 2008 17:47:44 +0000 (+0100)
Subject: [ALSA] bt87X: fix freeing of shared interrupt
X-Git-Tag: firefly_0821_release~22333
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2f93d797ea92113a73c72728c475455cb1409fb3;p=firefly-linux-kernel-4.4.55.git

[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>
---

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);