This is a note to let you know that I've just added the patch titled
drm/vmwgfx: Release ttm memory if probe fails
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-vmwgfx-release-ttm-memory-if-probe-fails.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 69d9df465ef9e480868fdb2d138259e20a35da6d
Author: Zack Rusin <zackr@xxxxxxxxxx>
Date: Fri Nov 5 15:38:43 2021 -0400
drm/vmwgfx: Release ttm memory if probe fails
[ Upstream commit 28b5f3b6121b7db2a44be499cfca0b6b801588b6 ]
The ttm mem global state was leaking if the vmwgfx driver load failed.
In case of a driver load failure we have to make sure we also release
the ttm mem global state.
Signed-off-by: Zack Rusin <zackr@xxxxxxxxxx>
Reviewed-by: Martin Krastev <krastevm@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20211105193845.258816-3-zackr@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index ab9a1750e1dff..8d0b083ba267f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1617,34 +1617,40 @@ static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver);
if (ret)
- return ret;
+ goto out_error;
ret = pcim_enable_device(pdev);
if (ret)
- return ret;
+ goto out_error;
vmw = devm_drm_dev_alloc(&pdev->dev, &driver,
struct vmw_private, drm);
- if (IS_ERR(vmw))
- return PTR_ERR(vmw);
+ if (IS_ERR(vmw)) {
+ ret = PTR_ERR(vmw);
+ goto out_error;
+ }
pci_set_drvdata(pdev, &vmw->drm);
ret = ttm_mem_global_init(&ttm_mem_glob, &pdev->dev);
if (ret)
- return ret;
+ goto out_error;
ret = vmw_driver_load(vmw, ent->device);
if (ret)
- return ret;
+ goto out_release;
ret = drm_dev_register(&vmw->drm, 0);
- if (ret) {
- vmw_driver_unload(&vmw->drm);
- return ret;
- }
+ if (ret)
+ goto out_unload;
return 0;
+out_unload:
+ vmw_driver_unload(&vmw->drm);
+out_release:
+ ttm_mem_global_release(&ttm_mem_glob);
+out_error:
+ return ret;
}
static int __init vmwgfx_init(void)
