1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index e6a11ca85eaf..a40c674a57be 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1374,7 +1374,9 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
                    fb->base.bits_per_pixel);
         describe_obj(m, fb->obj);
         seq_printf(m, "\n");
+        mutex_unlock(&dev->mode_config.mutex);
 
+        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)
                         continue;
@@ -1387,8 +1389,7 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
                 describe_obj(m, fb->obj);
                 seq_printf(m, "\n");
         }
-
-        mutex_unlock(&dev->mode_config.mutex);
+        mutex_unlock(&dev->mode_config.fb_lock);
 
         return 0;
 }