[src/trunk]: src/sys/arch/arm/broadcom Fix return with mutex held bug in get ...

[tls <tls%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3d2eeca7ba04
branches:  trunk
changeset: 789602:3d2eeca7ba04
user:      tls <tls%NetBSD.org@localhost>
date:      Sun Aug 25 17:08:41 2013 +0000

description:
Fix return with mutex held bug in get routine -- thanks Jared.

diffstat:

 sys/arch/arm/broadcom/bcm2835_rng.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r ca18180655f7 -r 3d2eeca7ba04 sys/arch/arm/broadcom/bcm2835_rng.c
--- a/sys/arch/arm/broadcom/bcm2835_rng.c       Sun Aug 25 14:20:30 2013 +0000
+++ b/sys/arch/arm/broadcom/bcm2835_rng.c       Sun Aug 25 17:08:41 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bcm2835_rng.c,v 1.6 2013/08/01 11:30:38 skrll Exp $ */
+/*     $NetBSD: bcm2835_rng.c,v 1.7 2013/08/25 17:08:41 tls Exp $ */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bcm2835_rng.c,v 1.6 2013/08/01 11:30:38 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bcm2835_rng.c,v 1.7 2013/08/25 17:08:41 tls Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -129,6 +129,7 @@
        mutex_spin_enter(&sc->sc_mutex);
 
        if (__predict_false(need < 1)) {
+               mutex_spin_exit(&sc->sc_mutex);
                return;
        }