From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 14 Apr 2009 14:13:58 +0000 (+0200)
Subject: ALSA: add private_data to struct snd_jack
X-Git-Tag: upstream/snapshot3+hdmi~19138^2^2~2^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9d59065cd6fae841ca56c281189d5b8d0817d35f;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

ALSA: add private_data to struct snd_jack

Added private_data and private_free fields to struct snd_jack so that
the caller can assign the data.  It'll be helpful for avoiding the
double-free of the jack instance.

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

diff --git a/include/sound/jack.h b/include/sound/jack.h
index 6b013c6..f236e42 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -50,6 +50,8 @@ struct snd_jack {
 	int type;
 	const char *id;
 	char name[100];
+	void *private_data;
+	void (*private_free)(struct snd_jack *);
 };
 
 #ifdef CONFIG_SND_JACK
diff --git a/sound/core/jack.c b/sound/core/jack.c
index c8254c6..d54d1a0 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -35,6 +35,9 @@ static int snd_jack_dev_free(struct snd_device *device)
 {
 	struct snd_jack *jack = device->device_data;
 
+	if (jack->private_free)
+		jack->private_free(jack);
+
 	/* If the input device is registered with the input subsystem
 	 * then we need to use a different deallocator. */
 	if (jack->registered)