[src/trunk]: src/sys/dev/gpio Make sure error is not used unitialized when sc...

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

details:   https://anonhg.NetBSD.org/src/rev/115b7087cae7
branches:  trunk
changeset: 769177:115b7087cae7
user:      mbalmer <mbalmer%NetBSD.org@localhost>
date:      Fri Sep 02 06:50:20 2011 +0000

description:
Make sure error is not used unitialized when sc->sc_attach_busy is 0.

diffstat:

 sys/dev/gpio/gpio.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 103640d9aafd -r 115b7087cae7 sys/dev/gpio/gpio.c
--- a/sys/dev/gpio/gpio.c       Fri Sep 02 03:16:18 2011 +0000
+++ b/sys/dev/gpio/gpio.c       Fri Sep 02 06:50:20 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: gpio.c,v 1.40 2011/08/31 12:20:35 mbalmer Exp $ */
+/* $NetBSD: gpio.c,v 1.41 2011/09/02 06:50:20 mbalmer Exp $ */
 /*     $OpenBSD: gpio.c,v 1.6 2006/01/14 12:33:49 grange Exp $ */
 
 /*
@@ -19,7 +19,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: gpio.c,v 1.40 2011/08/31 12:20:35 mbalmer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: gpio.c,v 1.41 2011/09/02 06:50:20 mbalmer Exp $");
 
 /*
  * General Purpose Input/Output framework.
@@ -724,6 +724,7 @@
                    NULL, NULL, NULL, NULL))
                        return EPERM;
 
+               error = 0;
                mutex_enter(&sc->sc_mtx);
                while (sc->sc_attach_busy) {
                        error = cv_wait_sig(&sc->sc_attach, &sc->sc_mtx);