[src/trunk]: src/sys/dev/usb actually fix one of the previous: don't test fo...

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

details:   https://anonhg.NetBSD.org/src/rev/4fd970846dbb
branches:  trunk
changeset: 335309:4fd970846dbb
user:      mrg <mrg%NetBSD.org@localhost>
date:      Fri Jan 02 20:42:44 2015 +0000

description:
actually fix one of the previous:  don't test for NULL after deref.

diffstat:

 sys/dev/usb/umidi.c |  6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diffs (27 lines):

diff -r 0f358e67eb3b -r 4fd970846dbb sys/dev/usb/umidi.c
--- a/sys/dev/usb/umidi.c       Fri Jan 02 20:34:26 2015 +0000
+++ b/sys/dev/usb/umidi.c       Fri Jan 02 20:42:44 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: umidi.c,v 1.67 2015/01/02 16:38:45 christos Exp $      */
+/*     $NetBSD: umidi.c,v 1.68 2015/01/02 20:42:44 mrg Exp $   */
 
 /*
  * Copyright (c) 2001, 2012, 2014 The NetBSD Foundation, Inc.
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: umidi.c,v 1.67 2015/01/02 16:38:45 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: umidi.c,v 1.68 2015/01/02 20:42:44 mrg Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -493,8 +493,6 @@
        KASSERT(mutex_owned(&sc->sc_lock));
        DPRINTF(("umidi_open: sc=%p\n", sc));
 
-       if (!sc)
-               return ENXIO;
        if (mididev->opened)
                return EBUSY;
        if (sc->sc_dying)