From: Jack Morgenstein <jackm@dev.mellanox.com>
Date: Tue, 25 Jun 2013 09:09:38 +0000 (+0300)
Subject: net/mlx4_core: Fail device init if num_vfs is negative
X-Git-Tag: v3.11-rc1~64^2~137
X-Git-Url: http://git.cascardo.eti.br/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=30e514a71753ac3fd0ddea1411d5602ccbe14acf

net/mlx4_core: Fail device init if num_vfs is negative

Should not allow negative num_vfs

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.com>
Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 81e4529092a3..56160a2bb57b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2077,6 +2077,11 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
 		       num_vfs, MLX4_MAX_NUM_VF);
 		return -EINVAL;
 	}
+
+	if (num_vfs < 0) {
+		pr_err("num_vfs module parameter cannot be negative\n");
+		return -EINVAL;
+	}
 	/*
 	 * Check for BARs.
 	 */