[src/trunk]: src/sys/dev/ieee1394 Bugfix: re-order double buffer only when se...

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

details:   https://anonhg.NetBSD.org/src/rev/5c7ae39cdace
branches:  trunk
changeset: 515984:5c7ae39cdace
user:      haya <haya%NetBSD.org@localhost>
date:      Fri Oct 12 09:27:23 2001 +0000

description:
Bugfix: re-order double buffer only when second buffer exists.

diffstat:

 sys/dev/ieee1394/fwohci.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (29 lines):

diff -r ddc421d62bc2 -r 5c7ae39cdace sys/dev/ieee1394/fwohci.c
--- a/sys/dev/ieee1394/fwohci.c Fri Oct 12 07:30:23 2001 +0000
+++ b/sys/dev/ieee1394/fwohci.c Fri Oct 12 09:27:23 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fwohci.c,v 1.43 2001/09/18 16:11:00 tsutsui Exp $      */
+/*     $NetBSD: fwohci.c,v 1.44 2001/10/12 09:27:23 haya Exp $ */
 
 #define DOUBLEBUF 1
 #define NO_THREAD 1
@@ -938,7 +938,9 @@
        struct fwohci_ctx *fc;
        struct fwohci_buf *fb;
        struct fwohci_desc *fd;
+#if DOUBLEBUF
        int buf2cnt;
+#endif
 
        fc = malloc(sizeof(*fc) + sizeof(*fb) * bufcnt, M_DEVBUF, M_WAITOK);
        memset(fc, 0, sizeof(*fc) + sizeof(*fb) * bufcnt);
@@ -1021,7 +1023,8 @@
        struct fwohci_handler *fh;
 
 #if DOUBLEBUF
-       if (TAILQ_FIRST(&fc->fc_buf) > TAILQ_FIRST(&fc->fc_buf2)) {
+       if ((fc->fc_type == FWOHCI_CTX_ISO_MULTI) &&
+           (TAILQ_FIRST(&fc->fc_buf) > TAILQ_FIRST(&fc->fc_buf2))) {
                struct fwohci_buf_s fctmp;
 
                fctmp = fc->fc_buf;