request for 4.14-stable: ffdf16edfbbe ("drm/i915/gvt: fix memory leak of a cmd_entry struct on error exit path")

[Sudip Mukherjee <sudipm.mukherjee@gmail.com>]

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Hi Greg,

This was not marked for stable but seems it should be in stable.
Please apply to your queue of 4.14-stable.

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Regards
Sudip

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>From 2f98e9fe07c5ed6a36646f71e7eb5486ca17db3e Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Tue, 10 Apr 2018 13:33:12 +0100
Subject: [PATCH] drm/i915/gvt: fix memory leak of a cmd_entry struct on error
 exit path

commit ffdf16edfbbe77f5f5c3c87fe8d7387ecd16241b upstream

The error exit path when a duplicate is found does not kfree and cmd_entry
struct and hence there is a small memory leak.  Fix this by kfree'ing it.

Detected by CoverityScan, CID#1370198 ("Resource Leak")

Fixes: be1da7070aea ("drm/i915/gvt: vGPU command scanner")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
---
 drivers/gpu/drm/i915/gvt/cmd_parser.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index d4726a3358a4..d6993c2707d1 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -2802,6 +2802,7 @@ static int init_cmd_table(struct intel_gvt *gvt)
 		if (info) {
 			gvt_err("%s %s duplicated\n", e->info->name,
 					info->name);
+			kfree(e);
 			return -EEXIST;
 		}
 
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2.11.0