1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 29917c7506cb..6658da743c3a 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -245,6 +245,10 @@ int device_attach(struct device *dev)
 
         device_lock(dev);
         if (dev->driver) {
+                if (klist_node_attached(&dev->p->knode_driver)) {
+                        ret = 1;
+                        goto out_unlock;
+                }
                 ret = device_bind_driver(dev);
                 if (ret == 0)
                         ret = 1;
@@ -257,6 +261,7 @@ int device_attach(struct device *dev)
                 ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
                 pm_runtime_put_sync(dev);
         }
+out_unlock:
         device_unlock(dev);
         return ret;
 }
@@ -408,17 +413,16 @@ void *dev_get_drvdata(const struct device *dev)
 }
 EXPORT_SYMBOL(dev_get_drvdata);
 
-void dev_set_drvdata(struct device *dev, void *data)
+int dev_set_drvdata(struct device *dev, void *data)
 {
         int error;
 
-        if (!dev)
-                return;
         if (!dev->p) {
                 error = device_private_init(dev);
                 if (error)
-                        return;
+                        return error;
         }
         dev->p->driver_data = data;
+        return 0;
 }
 EXPORT_SYMBOL(dev_set_drvdata);