[PATCH liburing v1 1/5] register: Remove useless branches in {un,}register eventfd

[Ammar Faizi <ammarfaizi2@xxxxxxxxxxx>]

From: Ammar Faizi <ammarfaizi2@xxxxxxxxxxx>

IORING_{UN,}REGISTER_EVENTFD and IORING_REGISTER_EVENTFD_ASYNC don't
return a positive value. These branches are useless. Remove them.

[1]: io_eventfd_register
[2]: io_eventfd_unregister

Kernel-code-ref: https://github.com/torvalds/linux/blob/v6.1-rc6/io_uring/io_uring.c#L2511-L2547 [1]
Kernel-code-ref: https://github.com/torvalds/linux/blob/v6.1-rc6/io_uring/io_uring.c#L2549-L2564 [2]
Signed-off-by: Ammar Faizi <ammarfaizi2@xxxxxxxxxxx>
---
 src/register.c | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

diff --git a/src/register.c b/src/register.c
index e849825..6cd607e 100644
--- a/src/register.c
+++ b/src/register.c
@@ -208,30 +208,21 @@ int io_uring_unregister_files(struct io_uring *ring)
 
 int io_uring_register_eventfd(struct io_uring *ring, int event_fd)
 {
-	int ret;
-
-	ret = __sys_io_uring_register(ring->ring_fd, IORING_REGISTER_EVENTFD,
-				      &event_fd, 1);
-	return (ret < 0) ? ret : 0;
+	return __sys_io_uring_register(ring->ring_fd, IORING_REGISTER_EVENTFD,
+				       &event_fd, 1);
 }
 
 int io_uring_unregister_eventfd(struct io_uring *ring)
 {
-	int ret;
-
-	ret = __sys_io_uring_register(ring->ring_fd, IORING_UNREGISTER_EVENTFD,
-				      NULL, 0);
-	return (ret < 0) ? ret : 0;
+	return __sys_io_uring_register(ring->ring_fd, IORING_UNREGISTER_EVENTFD,
+				       NULL, 0);
 }
 
 int io_uring_register_eventfd_async(struct io_uring *ring, int event_fd)
 {
-	int ret;
-
-	ret = __sys_io_uring_register(ring->ring_fd,
-				      IORING_REGISTER_EVENTFD_ASYNC, &event_fd,
-				      1);
-	return (ret < 0) ? ret : 0;
+	return __sys_io_uring_register(ring->ring_fd,
+				       IORING_REGISTER_EVENTFD_ASYNC, &event_fd,
+				       1);
 }
 
 int io_uring_register_probe(struct io_uring *ring, struct io_uring_probe *p,
-- 
Ammar Faizi