drivers: avoid format string in dev_set_name

Calling dev_set_name with a single paramter causes it to be handled as a
format string.  Many callers are passing potentially dynamic string
content, so use "%s" in those cases to avoid any potential accidents,
including wrappers like device_create*() and bdi_register().

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 3b367973a802..af8372feb587 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -477,7 +477,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
                                                 GFP_KERNEL);
         devfreq->last_stat_updated = jiffies;
 
-        dev_set_name(&devfreq->dev, dev_name(dev));
+        dev_set_name(&devfreq->dev, "%s", dev_name(dev));
         err = device_register(&devfreq->dev);
         if (err) {
                 put_device(&devfreq->dev);