[PATCH 11/59] drm/udl: Use devm_drm_dev_alloc
Daniel Vetter
daniel.vetter at ffwll.ch
Wed Apr 15 07:39:46 UTC 2020
Also init the fbdev emulation before we register the device, that way
we can rely on the auto-cleanup and simplify the probe error code even
more.
v2: Rebase on top of Thomas' patches to remove the return value from
drm_fbdev_generic_setup()
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
Cc: Noralf Trønnes <noralf at tronnes.org>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Sean Paul <sean at poorly.run>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Emil Velikov <emil.l.velikov at gmail.com>
Cc: Sam Ravnborg <sam at ravnborg.org>
Cc: Thomas Gleixner <tglx at linutronix.de>
---
drivers/gpu/drm/udl/udl_drv.c | 26 +++++++-------------------
1 file changed, 7 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 9cc6d075cb40..523f60e02a85 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -57,27 +57,20 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
struct udl_device *udl;
int r;
- udl = kzalloc(sizeof(*udl), GFP_KERNEL);
- if (!udl)
- return ERR_PTR(-ENOMEM);
-
- r = drm_dev_init(&udl->drm, &driver, &interface->dev);
- if (r) {
- kfree(udl);
- return ERR_PTR(r);
- }
+ udl = devm_drm_dev_alloc(&interface->dev, &driver,
+ struct udl_device, drm);
+ if (IS_ERR(udl))
+ return udl;
udl->udev = udev;
udl->drm.dev_private = udl;
- drmm_add_final_kfree(&udl->drm, udl);
r = udl_init(udl);
- if (r) {
- drm_dev_put(&udl->drm);
+ if (r)
return ERR_PTR(r);
- }
usb_set_intfdata(interface, udl);
+
return udl;
}
@@ -93,17 +86,13 @@ static int udl_usb_probe(struct usb_interface *interface,
r = drm_dev_register(&udl->drm, 0);
if (r)
- goto err_free;
+ return r;
DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
drm_fbdev_generic_setup(&udl->drm, 0);
return 0;
-
-err_free:
- drm_dev_put(&udl->drm);
- return r;
}
static void udl_usb_disconnect(struct usb_interface *interface)
@@ -113,7 +102,6 @@ static void udl_usb_disconnect(struct usb_interface *interface)
drm_kms_helper_poll_fini(dev);
udl_drop_usb(dev);
drm_dev_unplug(dev);
- drm_dev_put(dev);
}
/*
--
2.25.1
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