[PATCH 26/59] drm/qxl: Use devm_drm_dev_alloc

Daniel Vetter
2020-04-15T07:40:01Z

Also need to remove the drm_dev_put from the remove hook.

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: spice-devel@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_drv.c | 15 ++++++++-------
drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
drivers/gpu/drm/qxl/qxl_kms.c | 12 +-----------
3 files changed, 10 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 09102e2efabc..6b4ae4c5fb76 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -81,13 +81,16 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return -EINVAL; /* TODO: ENODEV ? */
}

- qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
- if (!qdev)
+ qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
+ struct qxl_device, ddev);
+ if (IS_ERR(qdev)) {
+ pr_err("Unable to init drm dev");
return -ENOMEM;
+ }

ret = pci_enable_device(pdev);
if (ret)
- goto free_dev;
+ return ret;

ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl");
if (ret)
@@ -101,7 +104,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}

- ret = qxl_device_init(qdev, &qxl_driver, pdev);
+ ret = qxl_device_init(qdev, pdev);
if (ret)
goto put_vga;

@@ -128,8 +131,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
vga_put(pdev, VGA_RSRC_LEGACY_IO);
disable_pci:
pci_disable_device(pdev);
-free_dev:
- kfree(qdev);
+
return ret;
}

@@ -155,7 +157,6 @@ qxl_pci_remove(struct pci_dev *pdev)
drm_atomic_helper_shutdown(dev);
if (is_vga(pdev))
vga_put(pdev, VGA_RSRC_LEGACY_IO);
- drm_dev_put(dev);
}

DEFINE_DRM_GEM_FOPS(qxl_fops);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 435126facc9b..86ac191d9205 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -276,8 +276,7 @@ struct qxl_device {
extern const struct drm_ioctl_desc qxl_ioctls[];
extern int qxl_max_ioctl;

-int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
- struct pci_dev *pdev);
+int qxl_device_init(struct qxl_device *qdev, struct pci_dev *pdev);
void qxl_device_fini(struct qxl_device *qdev);

int qxl_modeset_init(struct qxl_device *qdev);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 9eed1a375f24..91a34dd835d7 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -108,21 +108,13 @@ static void qxl_gc_work(struct work_struct *work)
}

int qxl_device_init(struct qxl_device *qdev,
- struct drm_driver *drv,
struct pci_dev *pdev)
{
int r, sb;

- r = drm_dev_init(&qdev->ddev, drv, &pdev->dev);
- if (r) {
- pr_err("Unable to init drm dev");
- goto error;
- }
-
qdev->ddev.pdev = pdev;
pci_set_drvdata(pdev, &qdev->ddev);
qdev->ddev.dev_private = qdev;
- drmm_add_final_kfree(&qdev->ddev, qdev);

mutex_init(&qdev->gem.mutex);
mutex_init(&qdev->update_area_mutex);
@@ -138,8 +130,7 @@ int qxl_device_init(struct qxl_device *qdev,
qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
if (!qdev->vram_mapping) {
pr_err("Unable to create vram_mapping");
- r = -ENOMEM;
- goto error;
+ return -ENOMEM;
}

if (pci_resource_len(pdev, 4) > 0) {
@@ -293,7 +284,6 @@ int qxl_device_init(struct qxl_device *qdev,
io_mapping_free(qdev->surface_mapping);
vram_mapping_free:
io_mapping_free(qdev->vram_mapping);
-error:
return r;
}

--
2.25.1