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Subject[PATCH 1/4] ALSA: core: use dev_to_snd_card
Date
Use dev_to_snd_card() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
---
sound/core/init.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/core/init.c b/sound/core/init.c
index 20f37fb..fcb84e1 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -639,7 +639,7 @@ static ssize_t
card_id_show_attr(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct snd_card *card = container_of(dev, struct snd_card, card_dev);
+ struct snd_card *card = dev_to_snd_card(dev);
return snprintf(buf, PAGE_SIZE, "%s\n", card->id);
}

@@ -647,7 +647,7 @@ static ssize_t
card_id_store_attr(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct snd_card *card = container_of(dev, struct snd_card, card_dev);
+ struct snd_card *card = dev_to_snd_card(dev);
char buf1[sizeof(card->id)];
size_t copy = count > sizeof(card->id) - 1 ?
sizeof(card->id) - 1 : count;
@@ -679,7 +679,7 @@ static ssize_t
card_number_show_attr(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct snd_card *card = container_of(dev, struct snd_card, card_dev);
+ struct snd_card *card = dev_to_snd_card(dev);
return snprintf(buf, PAGE_SIZE, "%i\n", card->number);
}

--
2.5.0



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