[PATCH 4.14 114/143] drm/i915/gvt: fix memory leak of a cmd_entry struct on error exit path

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

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.k...@canonical.com>
Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhen...@linux.intel.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukher...@gmail.com>
Acked-by: Zhenyu Wang <zhen...@linux.intel.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/i915/gvt/cmd_parser.c |    1 +
 1 file changed, 1 insertion(+)

--- 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_g
                if (info) {
                        gvt_err("%s %s duplicated\n", e->info->name,
                                        info->name);
+                       kfree(e);
                        return -EEXIST;
                }