From 72e75de2df9a7116d0afbcd5810b2a8fd4bf7559 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Fri, 16 Sep 2005 18:49:22 +0200
Subject: [PATCH] [ALSA] remove redundent assignment to the ac97 device
structure
AC97 Codec
Don't use dev.platform_data to store a reference to the containing
ac97_t structure. Such assignment is redundent since we can deduce the
ac97_t structure location from the contained device structure. This
sets platform_data free for other purposes.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/ac97_codec.h | 2 ++
sound/pci/ac97/ac97_codec.c | 1 -
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index 2857cf0472df0..d11f34832a972 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -527,6 +527,8 @@ struct _snd_ac97 {
struct device dev;
};
+#define to_ac97_t(d) container_of(d, struct _snd_ac97, dev)
+
/* conditions */
static inline int ac97_is_audio(ac97_t * ac97)
{
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index f221eba5c32f8..41fc290149ed1 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -1828,7 +1828,6 @@ static int snd_ac97_dev_register(snd_device_t *device)
ac97->dev.bus = &ac97_bus_type;
ac97->dev.parent = ac97->bus->card->dev;
- ac97->dev.platform_data = ac97;
ac97->dev.release = ac97_device_release;
snprintf(ac97->dev.bus_id, BUS_ID_SIZE, "card%d-%d", ac97->bus->card->number, ac97->num);
if ((err = device_register(&ac97->dev)) < 0) {
--
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