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>
git-mirror · Jun 25, 2013 · 30e514a · 30e514a
1 parent 674925e
commit 30e514a
Showing 1 changed file with 5 additions and 0 deletions.
diff --git 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.
 	 */