[src/trunk]: src/sys/arch/x86/x86 In _bus_dma_uiomove():

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

details:   https://anonhg.NetBSD.org/src/rev/1c80ea310ff8
branches:  trunk
changeset: 554488:1c80ea310ff8
user:      mycroft <mycroft%NetBSD.org@localhost>
date:      Tue Oct 28 22:49:51 2003 +0000

description:
In _bus_dma_uiomove():
* Don't punt after the first iov in the UIO_SYSSPACE case.  Not that this ever
  happens in practice right now.
* If we get through the loop, error==0 by definition, so just return 0.
* Eliminate bogus initializer.

diffstat:

 sys/arch/x86/x86/bus_dma.c |  9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diffs (41 lines):

diff -r 0f432dbf3d28 -r 1c80ea310ff8 sys/arch/x86/x86/bus_dma.c
--- a/sys/arch/x86/x86/bus_dma.c        Tue Oct 28 22:31:12 2003 +0000
+++ b/sys/arch/x86/x86/bus_dma.c        Tue Oct 28 22:49:51 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bus_dma.c,v 1.8 2003/10/25 18:39:40 christos Exp $     */
+/*     $NetBSD: bus_dma.c,v 1.9 2003/10/28 22:49:51 mycroft Exp $      */
 
 /*-
  * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@@ -38,7 +38,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.8 2003/10/25 18:39:40 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.9 2003/10/28 22:49:51 mycroft Exp $");
 
 /*
  * The following is included because _bus_dma_uiomove is derived from
@@ -812,7 +812,7 @@
        int direction;
 {
        struct iovec *iov;
-       int error = 0;
+       int error;
        struct proc *p;
        char *cp;
        size_t resid, cnt;
@@ -856,12 +856,11 @@
                                error = kcopy(iov->iov_base, cp, cnt);
                        if (error)
                                return (error);
-                       break;
                }
                cp += cnt;
                resid -= cnt;
        }
-       return (error);
+       return (0);
 }
 
 /*