diff options
| author |   Nguyen Dinh Phi <phind.uet@gmail.com> | 2022-03-04 02:36:18 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-18 14:28:29 +0100 |
| commit | 5a242d8547bdc5802d1e1200a85e69afc3c2d74e (patch) | |
| tree | eb14bd2ddfab55b9f3c2305477fc8c2b4e74417a /samples/kobject/kset-example.c | |
| parent | base: soc: Make soc_device_match() simpler and easier to read (diff) | |
| download | linux-dev-5a242d8547bdc5802d1e1200a85e69afc3c2d74e.tar.xz linux-dev-5a242d8547bdc5802d1e1200a85e69afc3c2d74e.zip | |
samples/kobject: Use sysfs_emit instead of sprintf
sysfs_emit() is preferred over sprintf() when formatting the value to be
returned to user space in show() functions, because it knows about sysfs
buffer specifics and has sanity checks.
Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Link: https://lore.kernel.org/r/20220303183618.1342358-1-phind.uet@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '')
| -rw-r--r-- | samples/kobject/kset-example.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/samples/kobject/kset-example.c b/samples/kobject/kset-example.c index c8010f126808..52f1acabd479 100644 --- a/samples/kobject/kset-example.c +++ b/samples/kobject/kset-example.c @@ -112,7 +112,7 @@ static void foo_release(struct kobject *kobj) static ssize_t foo_show(struct foo_obj *foo_obj, struct foo_attribute *attr, char *buf) { - return sprintf(buf, "%d\n", foo_obj->foo); + return sysfs_emit(buf, "%d\n", foo_obj->foo); } static ssize_t foo_store(struct foo_obj *foo_obj, struct foo_attribute *attr, @@ -144,7 +144,7 @@ static ssize_t b_show(struct foo_obj *foo_obj, struct foo_attribute *attr, var = foo_obj->baz; else var = foo_obj->bar; - return sprintf(buf, "%d\n", var); + return sysfs_emit(buf, "%d\n", var); } static ssize_t b_store(struct foo_obj *foo_obj, struct foo_attribute *attr, |