linux-kernel - [079/143] ALSA: emux: Add trivial compat ioctl handler

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Date:	Thu, 05 May 2011 17:21:04 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Ben Hutchings <ben@...adent.org.uk>,
	Takashi Iwai <tiwai@...e.de>
Subject: [079/143] ALSA: emux: Add trivial compat ioctl handler

2.6.32-longterm review patch.  If anyone has any objections, please let us know.

------------------

From: Ben Hutchings <ben@...adent.org.uk>

commit a254dba37c5a372fc8b44ba29509ba052d4e859d upstream.

Reported-by: Carmen Cru <carmen.cru@...gacom.net>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 sound/synth/emux/emux_hwdep.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/synth/emux/emux_hwdep.c
+++ b/sound/synth/emux/emux_hwdep.c
@@ -128,6 +128,9 @@ snd_emux_init_hwdep(struct snd_emux *emu
 	strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME);
 	hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE;
 	hw->ops.ioctl = snd_emux_hwdep_ioctl;
+	/* The ioctl parameter types are compatible between 32- and
+	 * 64-bit architectures, so use the same function. */
+	hw->ops.ioctl_compat = snd_emux_hwdep_ioctl;
 	hw->exclusive = 1;
 	hw->private_data = emu;
 	if ((err = snd_card_register(emu->card)) < 0)


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