From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: DRI Development <dri-devel@lists.freedesktop.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
Daniel Vetter <daniel.vetter@intel.com>
Subject: [PATCH 19/51] drm: Cleanups after drmm_add_final_kfree rollout
Date: Fri, 21 Feb 2020 22:02:47 +0100 [thread overview]
Message-ID: <20200221210319.2245170-20-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <20200221210319.2245170-1-daniel.vetter@ffwll.ch>
A few things:
- Update the example driver in the documentation.
- We can drop the old kfree in drm_dev_release.
- Add a WARN_ON check in drm_dev_register to make sure everyone calls
drmm_add_final_kfree and there's no leaks.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/drm_drv.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 9e62e28bbc62..1ee606b4a4f9 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -297,8 +297,6 @@ void drm_minor_release(struct drm_minor *minor)
*
* drm_mode_config_cleanup(drm);
* drm_dev_fini(drm);
- * kfree(priv->userspace_facing);
- * kfree(priv);
* }
*
* static struct drm_driver driver_drm_driver = {
@@ -326,10 +324,11 @@ void drm_minor_release(struct drm_minor *minor)
* kfree(drm);
* return ret;
* }
+ * drmm_add_final_kfree(drm, priv);
*
* drm_mode_config_init(drm);
*
- * priv->userspace_facing = kzalloc(..., GFP_KERNEL);
+ * priv->userspace_facing = drmm_kzalloc(..., GFP_KERNEL);
* if (!priv->userspace_facing)
* return -ENOMEM;
*
@@ -834,10 +833,6 @@ static void drm_dev_release(struct kref *ref)
dev->driver->release(dev);
} else {
drm_dev_fini(dev);
- if (!dev->managed.final_kfree) {
- WARN_ON(!list_empty(&dev->managed.resources));
- kfree(dev);
- }
}
drm_managed_release(dev);
@@ -960,6 +955,8 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags)
struct drm_driver *driver = dev->driver;
int ret;
+ WARN_ON(!dev->managed.final_kfree);
+
if (drm_dev_needs_global_mutex(dev))
mutex_lock(&drm_global_mutex);
--
2.24.1
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next prev parent reply other threads:[~2020-02-21 21:04 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-21 21:02 [PATCH 00/51] drm managed resources, v2 Daniel Vetter
2020-02-21 21:02 ` [PATCH 01/51] mm/sl[uo]b: export __kmalloc_track(_node)_caller Daniel Vetter
2020-02-21 21:02 ` [PATCH 02/51] drm/i915: Don't clear drvdata in ->release Daniel Vetter
2020-02-21 21:36 ` Chris Wilson
2020-02-22 9:48 ` Daniel Vetter
2020-02-22 9:50 ` Daniel Vetter
2020-02-21 21:02 ` [PATCH 03/51] drm: add managed resources tied to drm_device Daniel Vetter
2020-02-25 10:27 ` Andrzej Hajda
2020-02-25 15:03 ` Daniel Vetter
2020-02-26 9:21 ` Andrzej Hajda
2020-02-26 10:21 ` Daniel Vetter
2020-02-26 14:38 ` Andrzej Hajda
2020-02-21 21:02 ` [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc Daniel Vetter
2020-02-21 21:02 ` [PATCH 05/51] drm/mipi_dbi: Use drmm_add_final_kfree in all drivers Daniel Vetter
2020-02-21 21:02 ` [PATCH 06/51] drm/udl: Use drmm_add_final_kfree Daniel Vetter
2020-02-21 21:02 ` [PATCH 07/51] drm/qxl: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 08/51] drm/i915: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 09/51] drm/cirrus: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 10/51] drm/v3d: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 11/51] drm/tidss: " Daniel Vetter
2020-02-23 18:50 ` Jyri Sarha
2020-02-21 21:02 ` [PATCH 12/51] drm/mcde: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 13/51] drm/vgem: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 14/51] drm/vkms: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 15/51] drm/repaper: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 16/51] drm/inigenic: " Daniel Vetter
2020-02-21 21:02 ` [PATCH 17/51] drm/gm12u320: " Daniel Vetter
2020-02-22 11:36 ` Hans de Goede
2020-02-21 21:02 ` [PATCH 18/51] drm/<drivers>: " Daniel Vetter
2020-02-22 15:16 ` Russell King - ARM Linux admin
2020-02-27 17:46 ` Daniel Vetter
2020-02-21 21:02 ` Daniel Vetter [this message]
2020-02-21 21:02 ` [PATCH 20/51] drm: Handle dev->unique with drmm_ Daniel Vetter
2020-02-21 21:02 ` [PATCH 21/51] drm: Use drmm_ for drm_dev_init cleanup Daniel Vetter
2020-02-21 21:02 ` [PATCH 22/51] drm: manage drm_minor cleanup with drmm_ Daniel Vetter
2020-02-21 21:02 ` [PATCH 23/51] drm: Manage drm_gem_init " Daniel Vetter
2020-02-21 21:02 ` [PATCH 24/51] drm: Manage drm_vblank_cleanup " Daniel Vetter
2020-02-21 21:02 ` [PATCH 25/51] drm: Garbage collect drm_dev_fini Daniel Vetter
2020-02-21 21:02 ` [PATCH 26/51] drm: Manage drm_mode_config_init with drmm_ Daniel Vetter
2020-02-23 15:17 ` Noralf Trønnes
2020-02-21 21:02 ` [PATCH 27/51] drm/bochs: Remove leftover drm_atomic_helper_shutdown Daniel Vetter
2020-02-21 21:02 ` [PATCH 28/51] drm/bochs: Drop explicit drm_mode_config_cleanup Daniel Vetter
2020-02-21 21:02 ` [PATCH 29/51] drm/cirrus: Drop explicit drm_mode_config_cleanup call Daniel Vetter
2020-02-21 21:02 ` [PATCH 30/51] drm/cirrus: Fully embrace devm_ Daniel Vetter
2020-02-21 21:02 ` [PATCH 31/51] drm/ingenic: Drop explicit drm_mode_config_cleanup call Daniel Vetter
2020-02-21 21:03 ` [PATCH 32/51] drm/mcde: " Daniel Vetter
2020-02-21 21:03 ` [PATCH 33/51] drm/mcde: More devm_drm_dev_init Daniel Vetter
2020-02-21 21:03 ` [PATCH 34/51] drm/meson: Drop explicit drm_mode_config_cleanup call Daniel Vetter
2020-02-21 21:03 ` [PATCH 35/51] drm/pl111: " Daniel Vetter
2020-02-21 21:03 ` [PATCH 36/51] drm/rcar-du: " Daniel Vetter
2020-02-21 21:03 ` [PATCH 37/51] drm/rockchip: " Daniel Vetter
2020-02-24 19:13 ` Francesco Lavra
2020-02-24 20:37 ` Daniel Vetter
2020-02-21 21:03 ` [PATCH 38/51] drm/stm: " Daniel Vetter
2020-02-21 21:03 ` [PATCH 39/51] drm/shmob: " Daniel Vetter
2020-02-21 21:03 ` [PATCH 40/51] drm/mtk: " Daniel Vetter
2020-02-21 21:03 ` [PATCH 41/51] drm/tidss: " Daniel Vetter
2020-02-23 18:50 ` Jyri Sarha
2020-02-21 21:03 ` [PATCH 42/51] drm/gm12u320: More drmm_ Daniel Vetter
2020-02-22 12:10 ` Hans de Goede
2020-02-21 21:03 ` [PATCH 43/51] drm/gm12u320: Use devm_drm_dev_init Daniel Vetter
2020-02-22 12:10 ` Hans de Goede
2020-02-21 21:03 ` [PATCH 44/51] drm/gm12u320: Use helpers for shutdown/suspend/resume Daniel Vetter
2020-02-22 12:10 ` Hans de Goede
2020-02-21 21:03 ` [PATCH 45/51] drm/gm12u320: Simplify upload work Daniel Vetter
2020-02-22 12:30 ` Hans de Goede
2020-02-22 13:00 ` Daniel Vetter
2020-02-21 21:03 ` [PATCH 46/51] drm/repaper: Drop explicit drm_mode_config_cleanup call Daniel Vetter
2020-02-21 21:03 ` [PATCH 47/51] drm/mipi-dbi: Move drm_mode_config_init into mipi library Daniel Vetter
2020-02-21 21:03 ` [PATCH 48/51] drm/mipi-dbi: Drop explicit drm_mode_config_cleanup call Daniel Vetter
2020-02-21 21:03 ` [PATCH 49/51] drm/udl: " Daniel Vetter
2020-02-21 21:03 ` [PATCH 50/51] drm/udl: drop drm_driver.release hook Daniel Vetter
2020-02-21 21:03 ` [PATCH 51/51] drm: Add docs for managed resources Daniel Vetter
2020-02-27 18:14 [PATCH 00/51] drm managed resources, v3 Daniel Vetter
2020-02-27 18:14 ` [PATCH 19/51] drm: Cleanups after drmm_add_final_kfree rollout Daniel Vetter
2020-03-02 22:25 [PATCH 00/51] drm_device managed resources, v4 Daniel Vetter
2020-03-02 22:25 ` [PATCH 19/51] drm: Cleanups after drmm_add_final_kfree rollout Daniel Vetter
2020-03-06 20:29 ` Sam Ravnborg
2020-03-11 9:15 ` Thomas Zimmermann
2020-03-23 14:48 [PATCH 00/51] drm_device managed resources, v5 Daniel Vetter
2020-03-23 14:49 ` [PATCH 19/51] drm: Cleanups after drmm_add_final_kfree rollout Daniel Vetter
2020-04-02 0:50 ` Laurent Pinchart
2020-04-02 5:17 ` Daniel Vetter
2020-04-02 9:39 ` Laurent Pinchart
2020-04-02 9:50 ` Daniel Vetter
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