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Avoid null pointer dereference found by kUBSan with "member access within 

null pointer of type 'struct drm_fb_helper_crtc'".
This commit is contained in:
msaitoh 2019-11-05 04:09:51 +00:00
parent 958bc58d6c
commit 58c2d6794b
1 changed files with 3 additions and 3 deletions
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6
sys/external/bsd/drm2/dist/drm/drm_fb_helper.c vendored
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@ -1,4 +1,4 @@
/* $NetBSD: drm_fb_helper.c,v 1.12 2018/08/27 13:37:21 riastradh Exp $ */
/* $NetBSD: drm_fb_helper.c,v 1.13 2019/11/05 04:09:51 msaitoh Exp $ */
/*
* Copyright (c) 2006-2009 Red Hat Inc.
@ -30,7 +30,7 @@
* Jesse Barnes <jesse.barnes@intel.com>
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: drm_fb_helper.c,v 1.12 2018/08/27 13:37:21 riastradh Exp $");
__KERNEL_RCSID(0, "$NetBSD: drm_fb_helper.c,v 1.13 2019/11/05 04:09:51 msaitoh Exp $");
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@ -2086,9 +2086,9 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper)
struct drm_display_mode *mode = modes[i];
struct drm_fb_helper_crtc *fb_crtc = crtcs[i];
struct drm_fb_offset *offset = &offsets[i];
modeset = &fb_crtc->mode_set;
if (mode && fb_crtc) {
modeset = &fb_crtc->mode_set;
DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
mode->name, fb_crtc->mode_set.crtc->base.id, offset->x, offset->y);
fb_crtc->desired_mode = mode;