[PATCH 5.11 280/775] drm/virtio: fix an error code in virtio_gpu_init()

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpen...@oracle.com>

[ Upstream commit 8d0cb8860a4551fa5998acd67ca6d9ce3015b1e2 ]

If devm_request_mem_region() fails this code currently returns success
but it should return -EBUSY.

Fixes: 6076a9711dc5 ("drm/virtio: implement blob resources: probe for host 
visible region")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Link: http://patchwork.freedesktop.org/patch/msgid/YBpy0GS7GfmafMfe@mwanda
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
(cherry picked from commit eb988a2ee500d3297a1de048dc3c77b6c354e650)
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/virtio/virtgpu_kms.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c 
b/drivers/gpu/drm/virtio/virtgpu_kms.c
index b4ec479c32cda..b375394193be8 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -163,6 +163,7 @@ int virtio_gpu_init(struct drm_device *dev)
                                             vgdev->host_visible_region.len,
                                             dev_name(&vgdev->vdev->dev))) {
                        DRM_ERROR("Could not reserve host visible region\n");
+                       ret = -EBUSY;
                        goto err_vqs;
                }
 
-- 
2.27.0