ipc: simplify semtimedop/semctl_main() common error path handling
authorLinus Torvalds <torvalds@linux-foundation.org>
Sat, 4 May 2013 18:04:29 +0000 (11:04 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sun, 5 May 2013 00:21:58 +0000 (17:21 -0700)
commitc728b9c87b59fb943c4cba0552d38152787a4ab6
tree072a4bac6686701ef46eca2fabb06306c400391b
parent321310ced2d6cc0175c76fa512fa8a829ee35223
ipc: simplify semtimedop/semctl_main() common error path handling

With various straight RCU lock/unlock movements, one common exit path
pattern had become

rcu_read_unlock();
goto out_wakeup;

and in fact there were no cases where we wanted to exit to out_wakeup
_without_ releasing the RCU read lock.

So replace that pattern with "goto out_rcu_wakeup", and remove the old
out_wakeup.

Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ipc/sem.c