[src/trunk]: src/sys/external/bsd/drm2/drm Don't return events that are too l...

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

details:   https://anonhg.NetBSD.org/src/rev/6159fa61eb48
branches:  trunk
changeset: 336656:6159fa61eb48
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Mar 08 23:37:56 2015 +0000

description:
Don't return events that are too large and leave them in the list.

diffstat:

 sys/external/bsd/drm2/drm/drm_drv.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r c09e4fe3a6ea -r 6159fa61eb48 sys/external/bsd/drm2/drm/drm_drv.c
--- a/sys/external/bsd/drm2/drm/drm_drv.c       Sun Mar 08 22:47:22 2015 +0000
+++ b/sys/external/bsd/drm2/drm/drm_drv.c       Sun Mar 08 23:37:56 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: drm_drv.c,v 1.14 2015/03/06 14:02:39 riastradh Exp $   */
+/*     $NetBSD: drm_drv.c,v 1.15 2015/03/08 23:37:56 riastradh Exp $   */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: drm_drv.c,v 1.14 2015/03/06 14:02:39 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: drm_drv.c,v 1.15 2015/03/08 23:37:56 riastradh Exp $");
 
 #include <sys/param.h>
 #include <sys/types.h>
@@ -469,6 +469,8 @@
        event = list_first_entry(&file->event_list, struct drm_pending_event,
            link);
        if (event->event->length > max_length) {
+               /* Event is too large, can't return it.  */
+               event = NULL;
                ret = 0;
                goto out;
        }