Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[wsa: proper subject prefix]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
int count = 0, i;
for (i = 0; i < priv->num_chan && count < PAGE_SIZE; i++)
- count += scnprintf(buf + count, PAGE_SIZE - count, "%d:%pOF%c",
- i, priv->chan[i].parent_np,
- i == priv->num_chan - 1 ? '\n' : ' ');
+ count += sysfs_emit_at(buf, count, "%d:%pOF%c",
+ i, priv->chan[i].parent_np,
+ i == priv->num_chan - 1 ? '\n' : ' ');
return count;
}