drm: bridge: dw-hdmi: set ddc scl clock rate according to dts
[firefly-linux-kernel-4.4.55.git] / mm / backing-dev.c
index 9ef80bf441b37ffed8eaed66383261859ebd3623..a988d4ef39da00732848fdbc9111ecde62716a68 100644 (file)
@@ -757,15 +757,20 @@ static int cgwb_bdi_init(struct backing_dev_info *bdi)
        if (!bdi->wb_congested)
                return -ENOMEM;
 
+       atomic_set(&bdi->wb_congested->refcnt, 1);
+
        err = wb_init(&bdi->wb, bdi, 1, GFP_KERNEL);
        if (err) {
-               kfree(bdi->wb_congested);
+               wb_congested_put(bdi->wb_congested);
                return err;
        }
        return 0;
 }
 
-static void cgwb_bdi_destroy(struct backing_dev_info *bdi) { }
+static void cgwb_bdi_destroy(struct backing_dev_info *bdi)
+{
+       wb_congested_put(bdi->wb_congested);
+}
 
 #endif /* CONFIG_CGROUP_WRITEBACK */