extern int wait_for_completion_killable(struct completion *x);
extern unsigned long wait_for_completion_timeout(struct completion *x,
unsigned long timeout);
-extern unsigned long wait_for_completion_interruptible_timeout(
- struct completion *x, unsigned long timeout);
-extern unsigned long wait_for_completion_killable_timeout(
- struct completion *x, unsigned long timeout);
+extern long wait_for_completion_interruptible_timeout(
+ struct completion *x, unsigned long timeout);
+extern long wait_for_completion_killable_timeout(
+ struct completion *x, unsigned long timeout);
extern bool try_wait_for_completion(struct completion *x);
extern bool completion_done(struct completion *x);