From 95bf70a4bf7982091bb59200bc2db2cb5cd840d7 Mon Sep 17 00:00:00 2001
From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Tue, 18 Apr 2023 13:22:41 +0200
Subject: [PATCH] mlx5: Don't give zero number of pages to the firmware.

Can happen when using virtual mlx5_core<N> functions, VFs.

MFC after:	1 week
Sponsored by:	NVIDIA Networking
---
 sys/dev/mlx5/mlx5_core/mlx5_pagealloc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/dev/mlx5/mlx5_core/mlx5_pagealloc.c b/sys/dev/mlx5/mlx5_core/mlx5_pagealloc.c
index d298da67057..730c7ee8bee 100644
--- a/sys/dev/mlx5/mlx5_core/mlx5_pagealloc.c
+++ b/sys/dev/mlx5/mlx5_core/mlx5_pagealloc.c
@@ -509,7 +509,10 @@ int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot)
 	mlx5_core_dbg(dev, "requested %d %s pages for func_id 0x%x\n",
 		      npages, boot ? "boot" : "init", func_id);
 
-	return give_pages(dev, func_id, npages, 0);
+	if (npages > 0)
+		return give_pages(dev, func_id, npages, 0);
+	else
+		return 0;
 }
 
 enum {