devres: release resources on device_del()

Some platform devices are driven without driver attached, so managed
resources can be acquired without driver attached.  Make sure such
resources are released by calling devres_release_all() in
device_del().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index cf2a398aaaa1..89ebe3682726 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -787,6 +787,13 @@ void device_del(struct device * dev)
         device_remove_attrs(dev);
         bus_remove_device(dev);
 
+        /*
+         * Some platform devices are driven without driver attached
+         * and managed resources may have been acquired.  Make sure
+         * all resources are released.
+         */
+        devres_release_all(dev);
+
         /* Notify the platform of the removal, in case they
          * need to do anything...
          */