Re: [PATCH v1 1/2] media: rc: Add user count to rc dev.

From: Srinivas KANDAGATLA
Date: Fri Jul 19 2013 - 07:16:55 EST


On 19/07/13 12:01, Sean Young wrote:

>> + int rval = 0;
>>
>> - return rdev->open(rdev);
>> + if (!rdev->users++)
>> + rval = rdev->open(rdev);
>> +
>> + if (rval)
>> + rdev->users--;
>> +
>> + return rval;
>
> This looks racey. Some locking is needed, I think rc_dev->lock should work
> fine for this. Here and in the lirc code path too.
thanks Sean,
It makes sense, will fix this in v2.


Srini

>
> Sean
>
>> }
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/