@@ -845,13 +845,13 @@ static ssize_t imon_clock_show(struct device *d,
mutex_lock(&ictx->lock);
if (!ictx->display_supported) {
- len = snprintf(buf, PAGE_SIZE, "Not supported.");
+ len = sysfs_emit(buf, "Not supported.");
} else {
- len = snprintf(buf, PAGE_SIZE,
- "To set the clock on your iMON display:\n"
- "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n"
- "%s", ictx->display_isopen ?
- "\nNOTE: imon device must be closed\n" : "");
+ len = sysfs_emit(buf,
+ "To set the clock on your iMON display:\n"
+ "# date \"+%%y %%m %%d %%w %%H %%M %%S\" > imon_clock\n"
+ "%s", ictx->display_isopen ?
+ "\nNOTE: imon device must be closed\n" : "");
}
mutex_unlock(&ictx->lock);
Per filesystems/sysfs.rst, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. coccinelle complains that there are still a couple of functions that use snprintf(). Convert them to sysfs_emit(). sprintf() will be converted as weel if they have. Generally, this patch is generated by make coccicheck M=<path/to/file> MODE=patch \ COCCI=scripts/coccinelle/api/device_attr_show.cocci No functional change intended CC: Sean Young <sean@mess.org> CC: Mauro Carvalho Chehab <mchehab@kernel.org> CC: linux-media@vger.kernel.org Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> --- This is a part of the work "Fix coccicheck device_attr_show warnings"[1] Split them per subsystem so that the maintainer can review it easily [1] https://lore.kernel.org/lkml/20240116041129.3937800-1-lizhijian@fujitsu.com/ --- drivers/media/rc/imon.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)