From d6d1cad6a71befcdde96f1bea02da0647cccc8d3 Mon Sep 17 00:00:00 2001
From: Adrian Moreno <amorenoz@redhat.com>
Date: Mon, 27 Mar 2023 10:40:10 +0200
Subject: dpif-netlink: Always create at least 1 handler.

Ensure at least 1 handler is created even if something goes wrong during
cpu detection or prime numer calculation.

Fixes: a5cacea5f988 ("handlers: Create additional handler threads when using CPU isolation.")
Suggested-by: Aaron Conole <aconole@redhat.com>
Acked-by: Mike Pattrick <mkp@redhat.com>
Acked-by: Michael Santana <msantana@redhat.com>
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
---
 lib/dpif-netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dpif-netlink.c b/lib/dpif-netlink.c
index 6977888bb..f95e8fa4f 100644
--- a/lib/dpif-netlink.c
+++ b/lib/dpif-netlink.c
@@ -2582,7 +2582,7 @@ dpif_netlink_calculate_n_handlers(void)
         n_handlers = MIN(next_prime_num, total_cores);
     }
 
-    return n_handlers;
+    return MAX(n_handlers, 1);
 }
 
 static int
-- 
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