From 56fe6be9863dff7bfbd46b58c72123bcf8cbd91b Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Date: Mon, 11 Apr 2022 21:33:55 +0300
Subject: [PATCH] drm/virtio: Unlock reservations on dma_resv_reserve_fences()
error
Unlock reservations on dma_resv_reserve_fences() error to fix recursive
locking of the reservations when this error happens.
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
drivers/gpu/drm/virtio/virtgpu_gem.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index 580a788098361..7db48d17ee3a8 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -228,8 +228,10 @@ int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs)
for (i = 0; i < objs->nents; ++i) {
ret = dma_resv_reserve_fences(objs->objs[i]->resv, 1);
- if (ret)
+ if (ret) {
+ virtio_gpu_array_unlock_resv(objs);
return ret;
+ }
}
return ret;
}
--
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