From a7097ff89c3204737a07eecbc83f9ae6002cc534 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 1 Apr 2008 00:22:53 -0400 Subject: Input: make sure input interfaces pin parent input devices Recent driver core change causes references to parent devices being dropped early, at device_del() time, as opposed to when all children are freed. This causes oops in evdev with grabbed devices. Take the reference to the parent input device ourselves to ensure that it stays around long enough. Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/input/evdev.c') diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 99562cee827..b32984bc516 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -124,6 +124,7 @@ static void evdev_free(struct device *dev) { struct evdev *evdev = container_of(dev, struct evdev, dev); + input_put_device(evdev->handle.dev); kfree(evdev); } @@ -853,9 +854,6 @@ static void evdev_cleanup(struct evdev *evdev) evdev_hangup(evdev); evdev_remove_chrdev(evdev); - if (evdev->grab) - evdev_ungrab(evdev, evdev->grab); - /* evdev is marked dead so no one else accesses evdev->open */ if (evdev->open) { input_flush_device(handle, NULL); @@ -896,7 +894,7 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev, evdev->exist = 1; evdev->minor = minor; - evdev->handle.dev = dev; + evdev->handle.dev = input_get_device(dev); evdev->handle.name = evdev->name; evdev->handle.handler = handler; evdev->handle.private = evdev; -- cgit v1.2.3