1 files changed, 1 insertions, 1 deletions

diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index 8d600363fa57..f7ee85378311 100644
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -141,7 +141,7 @@ static inline void set_restore_sigmask(void)
 {
         struct thread_info *ti = current_thread_info();
         ti->status |= TS_RESTORE_SIGMASK;
-        set_bit(TIF_SIGPENDING, &ti->flags);
+        WARN_ON(!test_bit(TIF_SIGPENDING, &ti->flags));
 }
 static inline void clear_restore_sigmask(void)
 {