From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu, 17 Oct 2013 12:35:31 +0000 (+0200)
Subject: drm/i915: don't Oops in debugfs for I915_FBDEV=n
X-Git-Tag: next-20131021~65^2~12
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=131a56dc41b8c026f97466341167d86deb25357b;p=karo-tx-linux.git

drm/i915: don't Oops in debugfs for I915_FBDEV=n

Failed to properly test this.

Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5fce5d89b68a..7811bf40dd2c 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1456,7 +1456,7 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
 
 	mutex_lock(&dev->mode_config.fb_lock);
 	list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
-		if (&fb->base == ifbdev->helper.fb)
+		if (ifbdev && &fb->base == ifbdev->helper.fb)
 			continue;
 
 		seq_printf(m, "user size: %d x %d, depth %d, %d bpp, refcount %d, obj ",