From 50f934894d088b7e471e65b81a4cad474fcbe5e2 Mon Sep 17 00:00:00 2001
From: Matheus <matheusuky@gmail.com>
Date: Thu, 25 Dec 2025 20:20:50 -0300
Subject: [PATCH] prof: fix ioctl call

---
 tools/prof/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/prof/main.c b/tools/prof/main.c
index 3a44bec9..f4dbed87 100644
--- a/tools/prof/main.c
+++ b/tools/prof/main.c
@@ -43,7 +43,7 @@ int main(int argc, char *argv[]) {
 
 	printf("%s: draining /dev/prof\n", argv[0]);
 	// empty it
-	if (ioctl(infd, 12345678, NULL) > 0)
+	if (ioctl(infd, 12345678, NULL) < 0)
 		return EXIT_FAILURE;
 
 	struct pollfd pollfd[2];