One is supposed to pass in a format string containing (at most) one %u
instance. Use fmtcheck() to enforce that at runtime, WARNing and falling
back to a harmless "kthread/%u" in case verification fails.
Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
---
kernel/kthread.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 087d18d771b5..fddfe605632b 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -441,8 +441,8 @@ struct task_struct *kthread_create_on_cpu(int
(*threadfn)(void *data),
{
struct task_struct *p;
- p = kthread_create_on_node(threadfn, data, cpu_to_node(cpu), namefmt,
- cpu);
+ p = kthread_create_on_node(threadfn, data, cpu_to_node(cpu),
+ fmtcheck(namefmt, "kthread/%u", 0), cpu);
if (IS_ERR(p))
return p;
kthread_bind(p, cpu);
--
2.19.1.6.gbde171bbf5
