drm/i915: don't Oops in debugfs for I915_FBDEV=n
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 17 Oct 2013 12:35:31 +0000 (14:35 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 18 Oct 2013 13:05:31 +0000 (15:05 +0200)
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>
drivers/gpu/drm/i915/i915_debugfs.c

index 5fce5d8..7811bf4 100644 (file)
@@ -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 ",