sched/wait: Fix __wait_event_interruptible_lock_irq_timeout()
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Thu, 31 Oct 2013 11:48:14 +0000 (12:48 +0100)
committerIngo Molnar <mingo@kernel.org>
Fri, 1 Nov 2013 07:42:44 +0000 (08:42 +0100)
__wait_event_interruptible_lock_irq_timeout() needs the timeout
parameter passed instead of "ret".

This magically compiled since the only user has a local ret
variable. Luckily we got a build warning:

  CC      drivers/s390/scsi/zfcp_qdio.o
  drivers/s390/scsi/zfcp_qdio.c: In function 'zfcp_qdio_sbal_get':
  include/linux/wait.h:780:15: warning: 'ret' may be used uninitialized

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20131031114814.GB5551@osiris
Signed-off-by: Ingo Molnar <mingo@kernel.org>
include/linux/wait.h

index 3b23afa..61939ba 100644 (file)
@@ -739,7 +739,7 @@ do {                                                                        \
 #define __wait_event_interruptible_lock_irq_timeout(wq, condition,     \
                                                    lock, timeout)      \
        ___wait_event(wq, ___wait_cond_timeout(condition),              \
-                     TASK_INTERRUPTIBLE, 0, ret,                       \
+                     TASK_INTERRUPTIBLE, 0, timeout,                   \
                      spin_unlock_irq(&lock);                           \
                      __ret = schedule_timeout(__ret);                  \
                      spin_lock_irq(&lock));