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HID: core: cleanup .claimed field on disconnect

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When a subdriver is rmmod-ed then re-insmod-ed, the hid device is not
destroyed as it is owned by the transport layer.
So when we re-probed the device, the hid device is assumed to be already
claimed, and can lead to page faults if hid-core tries to forward the
emitted data to the to-be-created claimed node.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2014-11-03 15:33:32 -05:00 committed by Jiri Kosina
parent fa51ee1085
commit 9c5c6ed7b5
1 changed files with 1 additions and 0 deletions
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drivers/hid/hid-core.c
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@ -1659,6 +1659,7 @@ void hid_disconnect(struct hid_device *hdev)
hdev->hiddev_disconnect(hdev);
if (hdev->claimed & HID_CLAIMED_HIDRAW)
hidraw_disconnect(hdev);
hdev->claimed = 0;
}
EXPORT_SYMBOL_GPL(hid_disconnect);