From fdf0ff4d12cbcd76b53f27c96ce51ddca400884a Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Date: Thu, 30 Jun 2022 23:07:20 +0300
Subject: [PATCH] drm/virtio: Unlock reservations on virtio_gpu_object_shmem_init() error
Git-commit: fdf0ff4d12cbcd76b53f27c96ce51ddca400884a
Patch-mainline: v6.1-rc1
References: git-fixes

Unlock reservations in the error code path of virtio_gpu_object_create()
to silence debug warning splat produced by ww_mutex_destroy(&obj->lock)
when GEM is released with the held lock.

Cc: stable@vger.kernel.org
Fixes: 30172efbfb84 ("drm/virtio: blob prep: refactor getting pages and attaching backing")
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-4-dmitry.osipenko@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/virtio/virtgpu_object.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 87b19b3b96e0..75a159df0af6 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -249,6 +249,8 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
 
 	ret = virtio_gpu_object_shmem_init(vgdev, bo, &ents, &nents);
 	if (ret != 0) {
+		if (fence)
+			virtio_gpu_array_unlock_resv(objs);
 		virtio_gpu_array_put_free(objs);
 		virtio_gpu_free_object(&shmem_obj->base);
 		return ret;
-- 
2.35.3