[src/trunk]: src/sys/dev/hdaudio Initialize dma.dma_sizereg to avoid copying ...

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

details:   https://anonhg.NetBSD.org/src/rev/84b15ae2d63b
branches:  trunk
changeset: 808526:84b15ae2d63b
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Wed May 20 18:28:32 2015 +0000

description:
Initialize dma.dma_sizereg to avoid copying uninitialized data later.

This field is not actually used here -- not clear it should be in
the hdaudio_dma structure at all.

Noted by Coverity, CID 979553.

diffstat:

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

diffs (26 lines):

diff -r 129db9d061eb -r 84b15ae2d63b sys/dev/hdaudio/hdaudio.c
--- a/sys/dev/hdaudio/hdaudio.c Wed May 20 18:21:17 2015 +0000
+++ b/sys/dev/hdaudio/hdaudio.c Wed May 20 18:28:32 2015 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: hdaudio.c,v 1.1 2015/03/28 14:09:59 jmcneill Exp $ */
+/* $NetBSD: hdaudio.c,v 1.2 2015/05/20 18:28:32 riastradh Exp $ */
 
 /*
  * Copyright (c) 2009 Precedence Technologies Ltd <support%precedence.co.uk@localhost>
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: hdaudio.c,v 1.1 2015/03/28 14:09:59 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: hdaudio.c,v 1.2 2015/05/20 18:28:32 riastradh Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1028,6 +1028,7 @@
        int i, err;
 
        dma.dma_size = sizeof(struct hdaudio_bdl_entry) * HDAUDIO_BDL_MAX;
+       dma.dma_sizereg = 0;
        err = hdaudio_dma_alloc(sc, &dma, BUS_DMA_COHERENT | BUS_DMA_NOCACHE);
        if (err)
                return NULL;