diff options
| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2017-02-13 19:42:38 -0600 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-03-08 09:23:52 +0100 |
| commit | 68ae4b2b687c3da59ca1d762646ddece4ea1c438 (patch) | |
| tree | 6e0ebffd92c74bf41a8c0e587456cfd67db57347 /kernel/livepatch/core.c | |
| parent | c349cdcaba589fb49cf105093ebc695eb8b9ff08 (diff) | |
| download | linux-stable-68ae4b2b687c3da59ca1d762646ddece4ea1c438.tar.gz linux-stable-68ae4b2b687c3da59ca1d762646ddece4ea1c438.tar.bz2 linux-stable-68ae4b2b687c3da59ca1d762646ddece4ea1c438.zip | |
livepatch: use kstrtobool() in enabled_store()
The sysfs enabled value is a boolean, so kstrtobool() is a better fit
for parsing the input string since it does the range checking for us.
Suggested-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'kernel/livepatch/core.c')
| -rw-r--r-- | kernel/livepatch/core.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index 6a137e1f4490..83c4949862b4 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -408,26 +408,23 @@ static ssize_t enabled_store(struct kobject *kobj, struct kobj_attribute *attr, { struct klp_patch *patch; int ret; - unsigned long val; + bool enabled; - ret = kstrtoul(buf, 10, &val); + ret = kstrtobool(buf, &enabled); if (ret) - return -EINVAL; - - if (val > 1) - return -EINVAL; + return ret; patch = container_of(kobj, struct klp_patch, kobj); mutex_lock(&klp_mutex); - if (patch->enabled == val) { + if (patch->enabled == enabled) { /* already in requested state */ ret = -EINVAL; goto err; } - if (val) { + if (enabled) { ret = __klp_enable_patch(patch); if (ret) goto err; |