Re: [PATCH v5] Bluetooth: btwilink driver
From: Vitaly Wool
Date: Tue Nov 16 2010 - 18:20:49 EST
>> + /* Registration with ST layer is successful,
>> + * hardware is ready to accept commands from HCI core.
>> + */
>> + if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) {
>> + clear_bit(HCI_RUNNING, &hdev->flags);
>> + err = st_unregister(ST_BT);
>> + if (err)
>> + BT_ERR("st_unregister() failed with error %d", err);
>> + hst->st_write = NULL;
>> + }
>
>
> What are you trying to do here? test_and_set_bit() result doesn't say
> nothing about error and you shall put test_and_set_bit should be in the
> beginning, to know if your device is already opened or not and then
> clear_bit if some error ocurrs during the function.
>
Yeap, this piece of code beats me is well. Why is it an error if this
bit wasn't already set?
~Vitaly
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