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); }