[PATCH AUTOSEL 5.7 05/54] drm/virtio: fix memory leak in virtio_gpu_cleanup_object()

From: Sasha Levin
Date: Mon Aug 24 2020 - 13:15:42 EST


From: Xin He <hexin.op@xxxxxxxxxxxxx>

[ Upstream commit 836b194d65782aaec4485a07d2aab52d3f698505 ]

Before setting shmem->pages to NULL, kfree() should
be called.

Signed-off-by: Xin He <hexin.op@xxxxxxxxxxxxx>
Reviewed-by: Qi Liu <liuqi.16@xxxxxxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/20200722051851.72662-1-hexin.op@xxxxxxxxxxxxx
Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/virtio/virtgpu_object.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index d9039bb7c5e37..1e65c5ac573b1 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -79,6 +79,7 @@ void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo)
}

sg_free_table(shmem->pages);
+ kfree(shmem->pages);
shmem->pages = NULL;
drm_gem_shmem_unpin(&bo->base.base);
}
--
2.25.1