On 10/29/2011 08:24 AM, Dan Carpenter wrote:
> On Sat, Oct 29, 2011 at 01:58:15AM +0200, Julia Lawall wrote:
>> diff --git a/drivers/hid/hid-roccat.c b/drivers/hid/hid-roccat.c
>> index 2596321..36a28b8 100644
>> --- a/drivers/hid/hid-roccat.c
>> +++ b/drivers/hid/hid-roccat.c
>> @@ -163,14 +163,15 @@ static int roccat_open(struct inode *inode, struct file *file)
>>
>> device = devices[minor];
>>
>> - mutex_lock(&device->readers_lock);
>> -
>> if (!device) {
>> pr_emerg("roccat device with minor %d doesn't exist\n", minor);
>> - error = -ENODEV;
>> - goto exit_err;
>> + kfree(reader);
>> + mutex_lock(&devices_lock);
>
> Typo. mutex_unlock() instead of mutex_lock().
This is no typo, but simply wrong. Remove the mutex_lock() as we are
leaving the function here in error flow.
>> + return -ENODEV;
>> }
>>
>> + mutex_lock(&device->readers_lock);
>> +
>> if (!device->open++) {
>> /* power on device on adding first reader */
>> error = hid_hw_power(device->hid, PM_HINT_FULLON);
>>
>
> regards,
> dan carpenter
Gr. AvS
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