From eef8f5371104426d63c779a451fc560648d7fe42 Mon Sep 17 00:00:00 2001
From: Matheus <matheusuky@gmail.com>
Date: Thu, 4 Jun 2026 11:05:19 -0300
Subject: [PATCH] poll: explicitly set header to NULL on leave and fix being
 bound to a cpu after timeout

---
 kernel-src/io/poll.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel-src/io/poll.c b/kernel-src/io/poll.c
index 3ea9d1ca..b56b261b 100644
--- a/kernel-src/io/poll.c
+++ b/kernel-src/io/poll.c
@@ -67,6 +67,7 @@ void poll_leave(polldesc_t *desc) {
 		bool intstate = interrupt_set(false);
 		spinlock_acquire(&header->lock);
 		removefromlist(&header->data, &desc->data[i]);
+		desc->data[i].header = NULL;
 		spinlock_release(&header->lock);
 		interrupt_set(intstate);
 	}
@@ -115,7 +116,7 @@ int poll_dowait(polldesc_t *desc, size_t ustimeout) {
 		ret = EINTR;
 	}
 
-	if (ustimeout != 0 && ret != ETIMEDOUT) {
+	if (ustimeout != 0) {
 		timer_remove(current_cpu()->timer, &sleepentry);
 		sched_target_cpu(NULL);
 	}