linux-kernel - [PATCH 16/16] [ALSA] bt87X: fix freeing of shared interrupt

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Message-ID: <s5hzltsx4qn.wl%tiwai@suse.de>
Date:	Fri, 22 Feb 2008 18:47:44 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	torvalds@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: [PATCH 16/16] [ALSA] bt87X: fix freeing of shared interrupt

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

From: Clemens Ladisch <clemens@...isch.de>
Signed-off-by: Clemens Ladisch <clemens@...isch.de>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
---
 sound/pci/bt87x.c |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index c9a2421..4ecdd63 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);
-- 
1.5.3.8

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