From: TangDongxing <tang.dongxing@xxxxxxxxxx> Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: TangDongxing <tang.dongxing@xxxxxxxxxx> --- drivers/hid/hid-lg4ff.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index c0a138f21ca4..445623dd1bd6 100644 --- a/drivers/hid/hid-lg4ff.c +++ b/drivers/hid/hid-lg4ff.c @@ -823,7 +823,7 @@ static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attr for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { if (entry->wdata.alternate_modes & BIT(i)) { /* Print tag and full name */ - count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s", + count += sysfs_emit_at(buf, count, "%s: %s", lg4ff_alternate_modes[i].tag, !lg4ff_alternate_modes[i].product_id ? entry->wdata.real_name : lg4ff_alternate_modes[i].name); if (count >= PAGE_SIZE - 1) @@ -832,9 +832,9 @@ static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attr /* Mark the currently active mode with an asterisk */ if (lg4ff_alternate_modes[i].product_id == entry->wdata.product_id || (lg4ff_alternate_modes[i].product_id == 0 && entry->wdata.product_id == entry->wdata.real_product_id)) - count += scnprintf(buf + count, PAGE_SIZE - count, " *\n"); + count += sysfs_emit_at(buf, count, " *\n"); else - count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); + count += sysfs_emit_at(buf, count, "\n"); if (count >= PAGE_SIZE - 1) return count; -- 2.25.1