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Subject[PATCH 1/2] HID: hid-sensor-hub: Clear HID_CLAIMED_INPUT bit earlier
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Clear HID_CLAIMED_INPUT bit of hdev->claimed, this prevents calling
hidinput_disconnect() in hid_disconnect(), which is called by hid_hw_stop().

We need to clear HID_CLAIMED_INPUT bit earlier rather than in
sensor_hub_remove() because we also call hid_hw_stop() in sensor_hub_probe
error handling.

Also adds comments for why we set hdev->claimed = HID_CLAIMED_INPUT.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
Hi srinivas,
I don't have this hardware, I'd appreciate if you can test these patches.
Axel

drivers/hid/hid-sensor-hub.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 4ac759c..50bc8c7 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -539,8 +539,11 @@ static int sensor_hub_probe(struct hid_device *hdev,
}
INIT_LIST_HEAD(&hdev->inputs);

+ /* We don't use hidinput but hid_hw_start() fails if nothing is
+ * claimed. So spoof claimed input. */
hdev->claimed = HID_CLAIMED_INPUT;
ret = hid_hw_start(hdev, 0);
+ hdev->claimed &= ~HID_CLAIMED_INPUT;
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
@@ -627,7 +630,6 @@ static void sensor_hub_remove(struct hid_device *hdev)
int i;

hid_dbg(hdev, " hardware removed\n");
- hdev->claimed &= ~HID_CLAIMED_INPUT;
hid_hw_stop(hdev);
hid_hw_close(hdev);
spin_lock_irqsave(&data->lock, flags);
--
1.7.9.5




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