From 77ec6312c31dd5871c1f96450f8c6f7d892e8842 Mon Sep 17 00:00:00 2001
From: JosiahMg <josiahmg@163.com>
Date: Sun, 16 Jun 2024 19:43:58 +0800
Subject: [PATCH] the variable of the UNSIGNED INT may be negative when
 converting to INT

---
 soft_bfddpd/session.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/soft_bfddpd/session.c b/soft_bfddpd/session.c
index 78853b4..79cd3c4 100644
--- a/soft_bfddpd/session.c
+++ b/soft_bfddpd/session.c
@@ -38,7 +38,18 @@ static int
 bsessions_cmp(const struct bfd_session_data *bsda,
 	      const struct bfd_session_data *bsdb)
 {
-	return (int)(bsda->bsd_bs->bs_lid - bsdb->bsd_bs->bs_lid);
+	if (bsda->bsd_bs->bs_lid > bsdb->bsd_bs->bs_lid)
+	{
+		return 1;
+	}
+	else if(bsda->bsd_bs->bs_lid < bsd->bsd_bs->bs_lid)
+	{
+		return -1;
+	}
+	else
+	{
+		return 0;
+	}
 }
 
 RBT_HEAD(bsessionst, bfd_session_data) bsessionst;