block: request_module(): use format string

Avoid bad things happening if the module has a printk control string in
its name.

Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/block/elevator.c b/block/elevator.c
index 1f5bfe696026..ed6f8f32d27e 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -150,7 +150,7 @@ static struct elevator_type *elevator_get(const char *name)
                 else
                         sprintf(elv, "%s-iosched", name);
 
-                request_module(elv);
+                request_module("%s", elv);
                 spin_lock(&elv_list_lock);
                 e = elevator_find(name);
         }