From: Navid Emamdoost <navid.emamdoost@gmail.com>
Date: Wed, 25 Sep 2019 10:48:30 -0500
Subject: i40e: prevent memory leak in i40e_setup_macvlans
Patch-mainline: v5.5-rc1
Git-commit: 27d461333459d282ffa4a2bdb6b215a59d493a8f
References: jsc#SLE-8025 CVE-2019-19043 bsc#1159375

In i40e_setup_macvlans if i40e_setup_channel fails the allocated memory
for ch should be released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7187,6 +7187,7 @@ static int i40e_setup_macvlans(struct i4
 		ch->num_queue_pairs = qcnt;
 		if (!i40e_setup_channel(pf, vsi, ch)) {
 			ret = -EINVAL;
+			kfree(ch);
 			goto err_free;
 		}
 		ch->parent_vsi = vsi;