On 4/26/21 11:01 AM, Colin Ian King wrote:
> On 26/04/2021 10:59, Pavel Begunkov wrote:
>> On 4/26/21 10:47 AM, Colin King wrote:
>>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>>
>>> The variable up.resv is not initialized and is being checking for a
>>> non-zero value in the call to _io_register_rsrc_update. Fix this by
>>> explicitly setting the pointer to 0.
>
> ^^ s/pointer/variable/
>
> Shall I send a V2?
If you like, but if you don't want to resend it's not important, or
Jens can edit it while applying.
>
>>
>> LGTM, thanks Colin
>>
>>
>>> Addresses-Coverity: ("Uninitialized scalar variable)"
>>> Fixes: c3bdad027183 ("io_uring: add generic rsrc update with tags")
>>> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>> ---
>>> fs/io_uring.c | 1 +
>>> 1 file changed, 1 insertion(+)
>>>
>>> diff --git a/fs/io_uring.c b/fs/io_uring.c
>>> index f4ec092c23f4..63f610ee274b 100644
>>> --- a/fs/io_uring.c
>>> +++ b/fs/io_uring.c
>>> @@ -5842,6 +5842,7 @@ static int io_files_update(struct io_kiocb *req, unsigned int issue_flags)
>>> up.data = req->rsrc_update.arg;
>>> up.nr = 0;
>>> up.tags = 0;
>>> + up.resv = 0;
>>>
>>> mutex_lock(&ctx->uring_lock);
>>> ret = __io_register_rsrc_update(ctx, IORING_RSRC_FILE,
>>>
>>
>
--
Pavel Begunkov
