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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2014-11-03 15:33:32 -0500
committerJiri Kosina <jkosina@suse.cz>2014-11-03 23:31:19 +0100
commit9c5c6ed7b5078ba42b1c769a1c29b3ae4a6bee36 (patch)
treeb2a5b8737114dd0a8b5a509ee0ef5f0ac20d5e2e /drivers/hid
parentfa51ee1085d6f2fa344d4ba64faadc9c6db0a3f1 (diff)
HID: core: cleanup .claimed field on disconnect
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>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 73bd9e2e42bc..3402033fa52a 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -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);