linux-kernel - [PATCH 4.19 12/84] iwlwifi: dbg_ini: fix memory leak in alloc

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Message-Id: <20200116231715.043619927@linuxfoundation.org>
Date:   Fri, 17 Jan 2020 00:17:46 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Luca Coelho <luciano.coelho@...el.com>,
        Ben Hutchings <ben.hutchings@...ethink.co.uk>
Subject: [PATCH 4.19 12/84] iwlwifi: dbg_ini: fix memory leak in alloc_sgtable

From: Navid Emamdoost <navid.emamdoost@...il.com>

commit b4b814fec1a5a849383f7b3886b654a13abbda7d upstream.

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

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

--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -547,6 +547,7 @@ static struct scatterlist *alloc_sgtable
 				if (new_page)
 					__free_page(new_page);
 			}
+			kfree(table);
 			return NULL;
 		}
 		alloc_size = min_t(int, size, PAGE_SIZE);