From db1fb5a39747a680a4cc182c8bb4648b845a841f Mon Sep 17 00:00:00 2001
From: Navid Emamdoost <navid.emamdoost@gmail.com>
Date: Thu, 12 Sep 2019 23:23:27 -0500
Subject: [PATCH] iwlwifi: dbg_ini: fix memory leak in alloc_sgtable

commit b4b814fec1a5a849383f7b3886b654a13abbda7d upstream.

In alloc_sgtable if alloc_page fails, the alocated table should be
released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 4650b9e5da2b..ba9e7bfeca2c 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -532,6 +532,7 @@ static struct scatterlist *alloc_sgtable(int size)
 				if (new_page)
 					__free_page(new_page);
 			}
+			kfree(table);
 			return NULL;
 		}
 		alloc_size = min_t(int, size, PAGE_SIZE);