[PATCH] driver core: Make sure device detached from driver before deleting it

[Jeffy Chen]

There are cases we call device_del() without detaching it from the
driver(e.g. spi core del children devices).

Signed-off-by: Jeffy Chen <jeffy.c...@rock-chips.com>
---

 drivers/base/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 12ebd055724c..717efc3020af 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1951,6 +1951,8 @@ void device_del(struct device *dev)
        struct kobject *glue_dir = NULL;
        struct class_interface *class_intf;
 
+       device_release_driver(dev);
+
        /* Notify clients of device removal.  This call must come
         * before dpm_sysfs_remove().
         */
-- 
2.11.0