io_uring: remove dead non-zero 'poll' check

Colin reports that Coverity complains about checking for poll being
non-zero after having dereferenced it multiple times. This is a valid
complaint, and actually a leftover from back when this code was based
on the aio poll code.

Kill the redundant check.

Link: https://lore.kernel.org/io-uring/[email protected]/
Reported-by: Colin Ian King <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 7167c61c6d1b8295ebd2cc3d61e4c75ab70525b6..d94fb5835a20e8320e0af56c9fb120425bb7e614 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4956,7 +4956,7 @@ static int io_poll_double_wake(struct wait_queue_entry *wait, unsigned mode,
 
        list_del_init(&wait->entry);
 
-       if (poll && poll->head) {
+       if (poll->head) {
                bool done;
 
                spin_lock(&poll->head->lock);