UPSTREAM: io_uring: kill goto error handling in io_sqpoll_wait_sq()

Hunk extracted from commit 70aacfe6
upstream.

If the sqpoll thread has died, the out condition doesn't remove the
waiting task from the waitqueue. The goto and check are not needed, just
make it a break condition after setting the error value. That ensures
that we always remove ourselves from sqo_sq_wait waitqueue.

Bug: 268174392
Reported-by: Xingyuan Mo <hdthky0@gmail.com>
Change-Id: I8a6595652b1f607d15ac08542ad6d2e6038161fb
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 0f544353)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>