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authorYueHaibing <yuehaibing@huawei.com>2021-05-24 20:00:07 +0800
committerTakashi Iwai <tiwai@suse.de>2021-05-25 09:00:04 +0200
commite1dc219af7ebc600486482c6d06242a1a11a2e33 (patch)
treeeff8503a54bb882a07d6577924730231992ac070 /sound/core
parenta38e93302ee25b2ca6f4ee76c6c974cf3637985e (diff)
ALSA: pcm: use DEVICE_ATTR_RO macro
Use DEVICE_ATTR_RO() helper instead of plain DEVICE_ATTR(), which makes the code a bit shorter and easier to read. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20210524120007.39728-1-yuehaibing@huawei.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index b163164a83ec..6fd3677685d7 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -1004,7 +1004,7 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream)
substream->pstr->substream_opened--;
}
-static ssize_t show_pcm_class(struct device *dev,
+static ssize_t pcm_class_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct snd_pcm_str *pstr = container_of(dev, struct snd_pcm_str, dev);
@@ -1024,7 +1024,7 @@ static ssize_t show_pcm_class(struct device *dev,
return sprintf(buf, "%s\n", str);
}
-static DEVICE_ATTR(pcm_class, 0444, show_pcm_class, NULL);
+static DEVICE_ATTR_RO(pcm_class);
static struct attribute *pcm_dev_attrs[] = {
&dev_attr_pcm_class.attr,
NULL