* [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
[not found] <20200302222631.3861340-1-daniel.vetter@ffwll.ch>
@ 2020-03-02 22:25 ` Daniel Vetter
2020-03-03 7:44 ` Gerd Hoffmann
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Daniel Vetter @ 2020-03-02 22:25 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Oleksandr Andrushchenko, David Airlie,
Daniel Vetter, Intel Graphics Development, Maarten Lankhorst,
Maxime Ripard, Gerd Hoffmann, Thomas Zimmermann, xen-devel,
Daniel Vetter
I also did a full review of all callers, and only the xen driver
forgot to call drm_dev_put in the failure path. Fix that up too.
v2: I noticed that xen has a drm_driver.release hook, and uses
drm_dev_alloc(). We need to remove the kfree from
xen_drm_drv_release().
bochs also has a release hook, but leaked the drm_device ever since
commit 0a6659bdc5e8221da99eebb176fd9591435e38de
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Dec 17 18:04:46 2013 +0100
drm/bochs: new driver
This patch here fixes that leak.
Same for virtio, started leaking with
commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Feb 11 14:58:04 2020 +0100
drm/virtio: add drm_driver.release callback.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
---
drivers/gpu/drm/drm_drv.c | 3 +++
drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 153050fc926c..7b84ee8a5eb5 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -39,6 +39,7 @@
#include <drm/drm_color_mgmt.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
+#include <drm/drm_managed.h>
#include <drm/drm_mode_object.h>
#include <drm/drm_print.h>
@@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
return ERR_PTR(ret);
}
+ drmm_add_final_kfree(dev, dev);
+
return dev;
}
EXPORT_SYMBOL(drm_dev_alloc);
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 4be49c1aef51..d22b5da38935 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
drm_mode_config_cleanup(dev);
drm_dev_fini(dev);
- kfree(dev);
if (front_info->cfg.be_alloc)
xenbus_switch_state(front_info->xb_dev,
@@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
fail_modeset:
drm_kms_helper_poll_fini(drm_dev);
drm_mode_config_cleanup(drm_dev);
+ drm_dev_put(drm_dev);
fail:
kfree(drm_info);
return ret;
--
2.24.1
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
2020-03-02 22:25 ` [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc Daniel Vetter
@ 2020-03-03 7:44 ` Gerd Hoffmann
2020-03-07 8:06 ` Sam Ravnborg
2020-03-11 9:09 ` Thomas Zimmermann
2 siblings, 0 replies; 8+ messages in thread
From: Gerd Hoffmann @ 2020-03-03 7:44 UTC (permalink / raw)
To: Daniel Vetter
Cc: Daniel Vetter, Oleksandr Andrushchenko, David Airlie,
Intel Graphics Development, Maarten Lankhorst, DRI Development,
Maxime Ripard, Thomas Zimmermann, xen-devel, Daniel Vetter
On Mon, Mar 02, 2020 at 11:25:44PM +0100, Daniel Vetter wrote:
> I also did a full review of all callers, and only the xen driver
> forgot to call drm_dev_put in the failure path. Fix that up too.
>
> v2: I noticed that xen has a drm_driver.release hook, and uses
> drm_dev_alloc(). We need to remove the kfree from
> xen_drm_drv_release().
>
> bochs also has a release hook, but leaked the drm_device ever since
>
> commit 0a6659bdc5e8221da99eebb176fd9591435e38de
> Author: Gerd Hoffmann <kraxel@redhat.com>
> Date: Tue Dec 17 18:04:46 2013 +0100
>
> drm/bochs: new driver
>
> This patch here fixes that leak.
>
> Same for virtio, started leaking with
>
> commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
> Author: Gerd Hoffmann <kraxel@redhat.com>
> Date: Tue Feb 11 14:58:04 2020 +0100
>
> drm/virtio: add drm_driver.release callback.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Cc: xen-devel@lists.xenproject.org
>
> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Cc: xen-devel@lists.xenproject.org
> ---
> drivers/gpu/drm/drm_drv.c | 3 +++
> drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 153050fc926c..7b84ee8a5eb5 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -39,6 +39,7 @@
> #include <drm/drm_color_mgmt.h>
> #include <drm/drm_drv.h>
> #include <drm/drm_file.h>
> +#include <drm/drm_managed.h>
> #include <drm/drm_mode_object.h>
> #include <drm/drm_print.h>
>
> @@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> return ERR_PTR(ret);
> }
>
> + drmm_add_final_kfree(dev, dev);
> +
> return dev;
> }
> EXPORT_SYMBOL(drm_dev_alloc);
> diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
> index 4be49c1aef51..d22b5da38935 100644
> --- a/drivers/gpu/drm/xen/xen_drm_front.c
> +++ b/drivers/gpu/drm/xen/xen_drm_front.c
> @@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
> drm_mode_config_cleanup(dev);
>
> drm_dev_fini(dev);
> - kfree(dev);
>
> if (front_info->cfg.be_alloc)
> xenbus_switch_state(front_info->xb_dev,
> @@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
> fail_modeset:
> drm_kms_helper_poll_fini(drm_dev);
> drm_mode_config_cleanup(drm_dev);
> + drm_dev_put(drm_dev);
> fail:
> kfree(drm_info);
> return ret;
> --
> 2.24.1
>
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
2020-03-02 22:25 ` [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc Daniel Vetter
2020-03-03 7:44 ` Gerd Hoffmann
@ 2020-03-07 8:06 ` Sam Ravnborg
2020-03-23 11:02 ` Daniel Vetter
2020-03-11 9:09 ` Thomas Zimmermann
2 siblings, 1 reply; 8+ messages in thread
From: Sam Ravnborg @ 2020-03-07 8:06 UTC (permalink / raw)
To: Daniel Vetter
Cc: Oleksandr Andrushchenko, David Airlie,
Intel Graphics Development, DRI Development, Gerd Hoffmann,
Thomas Zimmermann, Daniel Vetter, xen-devel
On Mon, Mar 02, 2020 at 11:25:44PM +0100, Daniel Vetter wrote:
> I also did a full review of all callers, and only the xen driver
> forgot to call drm_dev_put in the failure path. Fix that up too.
So ~40 callers - phew..
>
> v2: I noticed that xen has a drm_driver.release hook, and uses
> drm_dev_alloc(). We need to remove the kfree from
> xen_drm_drv_release().
>
> bochs also has a release hook, but leaked the drm_device ever since
>
> commit 0a6659bdc5e8221da99eebb176fd9591435e38de
> Author: Gerd Hoffmann <kraxel@redhat.com>
> Date: Tue Dec 17 18:04:46 2013 +0100
>
> drm/bochs: new driver
>
> This patch here fixes that leak.
>
> Same for virtio, started leaking with
>
> commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
> Author: Gerd Hoffmann <kraxel@redhat.com>
> Date: Tue Feb 11 14:58:04 2020 +0100
>
> drm/virtio: add drm_driver.release callback.
>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Cc: xen-devel@lists.xenproject.org
The above will be picked up by tools as regular Cc: lines.
But I guess it is fine.
>
> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Cc: xen-devel@lists.xenproject.org
For the drivers I looked at everything looked fine.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/gpu/drm/drm_drv.c | 3 +++
> drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 153050fc926c..7b84ee8a5eb5 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -39,6 +39,7 @@
> #include <drm/drm_color_mgmt.h>
> #include <drm/drm_drv.h>
> #include <drm/drm_file.h>
> +#include <drm/drm_managed.h>
> #include <drm/drm_mode_object.h>
> #include <drm/drm_print.h>
>
> @@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> return ERR_PTR(ret);
> }
>
> + drmm_add_final_kfree(dev, dev);
> +
> return dev;
> }
> EXPORT_SYMBOL(drm_dev_alloc);
> diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
> index 4be49c1aef51..d22b5da38935 100644
> --- a/drivers/gpu/drm/xen/xen_drm_front.c
> +++ b/drivers/gpu/drm/xen/xen_drm_front.c
> @@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
> drm_mode_config_cleanup(dev);
>
> drm_dev_fini(dev);
> - kfree(dev);
>
> if (front_info->cfg.be_alloc)
> xenbus_switch_state(front_info->xb_dev,
> @@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
> fail_modeset:
> drm_kms_helper_poll_fini(drm_dev);
> drm_mode_config_cleanup(drm_dev);
> + drm_dev_put(drm_dev);
> fail:
> kfree(drm_info);
> return ret;
> --
> 2.24.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
2020-03-02 22:25 ` [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc Daniel Vetter
2020-03-03 7:44 ` Gerd Hoffmann
2020-03-07 8:06 ` Sam Ravnborg
@ 2020-03-11 9:09 ` Thomas Zimmermann
2 siblings, 0 replies; 8+ messages in thread
From: Thomas Zimmermann @ 2020-03-11 9:09 UTC (permalink / raw)
To: Daniel Vetter, DRI Development
Cc: Oleksandr Andrushchenko, David Airlie,
Intel Graphics Development, Gerd Hoffmann, Daniel Vetter,
xen-devel
[-- Attachment #1.1.1: Type: text/plain, Size: 3260 bytes --]
Am 02.03.20 um 23:25 schrieb Daniel Vetter:
> I also did a full review of all callers, and only the xen driver
> forgot to call drm_dev_put in the failure path. Fix that up too.
>
> v2: I noticed that xen has a drm_driver.release hook, and uses
> drm_dev_alloc(). We need to remove the kfree from
> xen_drm_drv_release().
>
> bochs also has a release hook, but leaked the drm_device ever since
>
> commit 0a6659bdc5e8221da99eebb176fd9591435e38de
> Author: Gerd Hoffmann <kraxel@redhat.com>
> Date: Tue Dec 17 18:04:46 2013 +0100
>
> drm/bochs: new driver
>
> This patch here fixes that leak.
>
> Same for virtio, started leaking with
>
> commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
> Author: Gerd Hoffmann <kraxel@redhat.com>
> Date: Tue Feb 11 14:58:04 2020 +0100
>
> drm/virtio: add drm_driver.release callback.
>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Cc: xen-devel@lists.xenproject.org
>
> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> Cc: xen-devel@lists.xenproject.org
> ---
> drivers/gpu/drm/drm_drv.c | 3 +++
> drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 153050fc926c..7b84ee8a5eb5 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -39,6 +39,7 @@
> #include <drm/drm_color_mgmt.h>
> #include <drm/drm_drv.h>
> #include <drm/drm_file.h>
> +#include <drm/drm_managed.h>
> #include <drm/drm_mode_object.h>
> #include <drm/drm_print.h>
>
> @@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> return ERR_PTR(ret);
> }
>
> + drmm_add_final_kfree(dev, dev);
> +
> return dev;
> }
> EXPORT_SYMBOL(drm_dev_alloc);
> diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
> index 4be49c1aef51..d22b5da38935 100644
> --- a/drivers/gpu/drm/xen/xen_drm_front.c
> +++ b/drivers/gpu/drm/xen/xen_drm_front.c
> @@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
> drm_mode_config_cleanup(dev);
>
> drm_dev_fini(dev);
> - kfree(dev);
>
> if (front_info->cfg.be_alloc)
> xenbus_switch_state(front_info->xb_dev,
> @@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
> fail_modeset:
> drm_kms_helper_poll_fini(drm_dev);
> drm_mode_config_cleanup(drm_dev);
> + drm_dev_put(drm_dev);
> fail:
> kfree(drm_info);
> return ret;
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
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[-- Attachment #2: Type: text/plain, Size: 157 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
2020-03-07 8:06 ` Sam Ravnborg
@ 2020-03-23 11:02 ` Daniel Vetter
0 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2020-03-23 11:02 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Oleksandr Andrushchenko, David Airlie, Daniel Vetter,
Intel Graphics Development, DRI Development, Gerd Hoffmann,
Thomas Zimmermann, Daniel Vetter, xen-devel
On Sat, Mar 07, 2020 at 09:06:08AM +0100, Sam Ravnborg wrote:
> On Mon, Mar 02, 2020 at 11:25:44PM +0100, Daniel Vetter wrote:
> > I also did a full review of all callers, and only the xen driver
> > forgot to call drm_dev_put in the failure path. Fix that up too.
>
> So ~40 callers - phew..
>
> >
> > v2: I noticed that xen has a drm_driver.release hook, and uses
> > drm_dev_alloc(). We need to remove the kfree from
> > xen_drm_drv_release().
> >
> > bochs also has a release hook, but leaked the drm_device ever since
> >
> > commit 0a6659bdc5e8221da99eebb176fd9591435e38de
> > Author: Gerd Hoffmann <kraxel@redhat.com>
> > Date: Tue Dec 17 18:04:46 2013 +0100
> >
> > drm/bochs: new driver
> >
> > This patch here fixes that leak.
> >
> > Same for virtio, started leaking with
> >
> > commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
> > Author: Gerd Hoffmann <kraxel@redhat.com>
> > Date: Tue Feb 11 14:58:04 2020 +0100
> >
> > drm/virtio: add drm_driver.release callback.
> >
> > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> > Cc: xen-devel@lists.xenproject.org
>
> The above will be picked up by tools as regular Cc: lines.
> But I guess it is fine.
That was the idea, I've deleted the spurious blank line to make this less
confusing.
-Daniel
>
> >
> > Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > Cc: Maxime Ripard <mripard@kernel.org>
> > Cc: Thomas Zimmermann <tzimmermann@suse.de>
> > Cc: David Airlie <airlied@linux.ie>
> > Cc: Daniel Vetter <daniel@ffwll.ch>
> > Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> > Cc: xen-devel@lists.xenproject.org
>
> For the drivers I looked at everything looked fine.
>
> Acked-by: Sam Ravnborg <sam@ravnborg.org>
>
> > ---
> > drivers/gpu/drm/drm_drv.c | 3 +++
> > drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
> > 2 files changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> > index 153050fc926c..7b84ee8a5eb5 100644
> > --- a/drivers/gpu/drm/drm_drv.c
> > +++ b/drivers/gpu/drm/drm_drv.c
> > @@ -39,6 +39,7 @@
> > #include <drm/drm_color_mgmt.h>
> > #include <drm/drm_drv.h>
> > #include <drm/drm_file.h>
> > +#include <drm/drm_managed.h>
> > #include <drm/drm_mode_object.h>
> > #include <drm/drm_print.h>
> >
> > @@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> > return ERR_PTR(ret);
> > }
> >
> > + drmm_add_final_kfree(dev, dev);
> > +
> > return dev;
> > }
> > EXPORT_SYMBOL(drm_dev_alloc);
> > diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
> > index 4be49c1aef51..d22b5da38935 100644
> > --- a/drivers/gpu/drm/xen/xen_drm_front.c
> > +++ b/drivers/gpu/drm/xen/xen_drm_front.c
> > @@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
> > drm_mode_config_cleanup(dev);
> >
> > drm_dev_fini(dev);
> > - kfree(dev);
> >
> > if (front_info->cfg.be_alloc)
> > xenbus_switch_state(front_info->xb_dev,
> > @@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
> > fail_modeset:
> > drm_kms_helper_poll_fini(drm_dev);
> > drm_mode_config_cleanup(drm_dev);
> > + drm_dev_put(drm_dev);
> > fail:
> > kfree(drm_info);
> > return ret;
> > --
> > 2.24.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
[not found] <20200323144950.3018436-1-daniel.vetter@ffwll.ch>
@ 2020-03-23 14:49 ` Daniel Vetter
0 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2020-03-23 14:49 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Oleksandr Andrushchenko, David Airlie,
Daniel Vetter, Intel Graphics Development, Maarten Lankhorst,
Maxime Ripard, Gerd Hoffmann, Thomas Zimmermann, Daniel Vetter,
xen-devel, Sam Ravnborg
I also did a full review of all callers, and only the xen driver
forgot to call drm_dev_put in the failure path. Fix that up too.
v2: I noticed that xen has a drm_driver.release hook, and uses
drm_dev_alloc(). We need to remove the kfree from
xen_drm_drv_release().
bochs also has a release hook, but leaked the drm_device ever since
commit 0a6659bdc5e8221da99eebb176fd9591435e38de
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Dec 17 18:04:46 2013 +0100
drm/bochs: new driver
This patch here fixes that leak.
Same for virtio, started leaking with
commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Feb 11 14:58:04 2020 +0100
drm/virtio: add drm_driver.release callback.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
---
drivers/gpu/drm/drm_drv.c | 3 +++
drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 1b9be23b93b0..877ded348b6e 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -39,6 +39,7 @@
#include <drm/drm_color_mgmt.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
+#include <drm/drm_managed.h>
#include <drm/drm_mode_object.h>
#include <drm/drm_print.h>
@@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
return ERR_PTR(ret);
}
+ drmm_add_final_kfree(dev, dev);
+
return dev;
}
EXPORT_SYMBOL(drm_dev_alloc);
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 4be49c1aef51..d22b5da38935 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
drm_mode_config_cleanup(dev);
drm_dev_fini(dev);
- kfree(dev);
if (front_info->cfg.be_alloc)
xenbus_switch_state(front_info->xb_dev,
@@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
fail_modeset:
drm_kms_helper_poll_fini(drm_dev);
drm_mode_config_cleanup(drm_dev);
+ drm_dev_put(drm_dev);
fail:
kfree(drm_info);
return ret;
--
2.25.1
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
[not found] <20200227181522.2711142-1-daniel.vetter@ffwll.ch>
@ 2020-02-27 18:14 ` Daniel Vetter
0 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2020-02-27 18:14 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Oleksandr Andrushchenko, David Airlie,
Daniel Vetter, Intel Graphics Development, Maarten Lankhorst,
m.felsch, Maxime Ripard, Gerd Hoffmann, Thomas Zimmermann,
Daniel Vetter, xen-devel, l.stach
I also did a full review of all callers, and only the xen driver
forgot to call drm_dev_put in the failure path. Fix that up too.
v2: I noticed that xen has a drm_driver.release hook, and uses
drm_dev_alloc(). We need to remove the kfree from
xen_drm_drv_release().
bochs also has a release hook, but leaked the drm_device ever since
commit 0a6659bdc5e8221da99eebb176fd9591435e38de
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Dec 17 18:04:46 2013 +0100
drm/bochs: new driver
This patch here fixes that leak.
Same for virtio, started leaking with
commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Feb 11 14:58:04 2020 +0100
drm/virtio: add drm_driver.release callback.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
---
drivers/gpu/drm/drm_drv.c | 3 +++
drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 3e5627d6eba6..9e62e28bbc62 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -39,6 +39,7 @@
#include <drm/drm_color_mgmt.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
+#include <drm/drm_managed.h>
#include <drm/drm_mode_object.h>
#include <drm/drm_print.h>
@@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
return ERR_PTR(ret);
}
+ drmm_add_final_kfree(dev, dev);
+
return dev;
}
EXPORT_SYMBOL(drm_dev_alloc);
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 4be49c1aef51..d22b5da38935 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
drm_mode_config_cleanup(dev);
drm_dev_fini(dev);
- kfree(dev);
if (front_info->cfg.be_alloc)
xenbus_switch_state(front_info->xb_dev,
@@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
fail_modeset:
drm_kms_helper_poll_fini(drm_dev);
drm_mode_config_cleanup(drm_dev);
+ drm_dev_put(drm_dev);
fail:
kfree(drm_info);
return ret;
--
2.24.1
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc
[not found] <20200221210319.2245170-1-daniel.vetter@ffwll.ch>
@ 2020-02-21 21:02 ` Daniel Vetter
0 siblings, 0 replies; 8+ messages in thread
From: Daniel Vetter @ 2020-02-21 21:02 UTC (permalink / raw)
To: DRI Development
Cc: Daniel Vetter, Oleksandr Andrushchenko, David Airlie,
Daniel Vetter, Intel Graphics Development, Maarten Lankhorst,
Maxime Ripard, Gerd Hoffmann, Thomas Zimmermann, xen-devel,
Daniel Vetter
I also did a full review of all callers, and only the xen driver
forgot to call drm_dev_put in the failure path. Fix that up too.
v2: I noticed that xen has a drm_driver.release hook, and uses
drm_dev_alloc(). We need to remove the kfree from
xen_drm_drv_release().
bochs also has a release hook, but leaked the drm_device ever since
commit 0a6659bdc5e8221da99eebb176fd9591435e38de
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Dec 17 18:04:46 2013 +0100
drm/bochs: new driver
This patch here fixes that leak.
Same for virtio, started leaking with
commit b1df3a2b24a917f8853d43fe9683c0e360d2c33a
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Feb 11 14:58:04 2020 +0100
drm/virtio: add drm_driver.release callback.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Cc: xen-devel@lists.xenproject.org
---
drivers/gpu/drm/drm_drv.c | 3 +++
drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 3e5627d6eba6..9e62e28bbc62 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -39,6 +39,7 @@
#include <drm/drm_color_mgmt.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
+#include <drm/drm_managed.h>
#include <drm/drm_mode_object.h>
#include <drm/drm_print.h>
@@ -819,6 +820,8 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
return ERR_PTR(ret);
}
+ drmm_add_final_kfree(dev, dev);
+
return dev;
}
EXPORT_SYMBOL(drm_dev_alloc);
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 4be49c1aef51..d22b5da38935 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -461,7 +461,6 @@ static void xen_drm_drv_release(struct drm_device *dev)
drm_mode_config_cleanup(dev);
drm_dev_fini(dev);
- kfree(dev);
if (front_info->cfg.be_alloc)
xenbus_switch_state(front_info->xb_dev,
@@ -561,6 +560,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
fail_modeset:
drm_kms_helper_poll_fini(drm_dev);
drm_mode_config_cleanup(drm_dev);
+ drm_dev_put(drm_dev);
fail:
kfree(drm_info);
return ret;
--
2.24.1
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
^ permalink raw reply related [flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-03-23 14:50 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <20200302222631.3861340-1-daniel.vetter@ffwll.ch>
2020-03-02 22:25 ` [Xen-devel] [PATCH 04/51] drm: Set final_kfree in drm_dev_alloc Daniel Vetter
2020-03-03 7:44 ` Gerd Hoffmann
2020-03-07 8:06 ` Sam Ravnborg
2020-03-23 11:02 ` Daniel Vetter
2020-03-11 9:09 ` Thomas Zimmermann
[not found] <20200323144950.3018436-1-daniel.vetter@ffwll.ch>
2020-03-23 14:49 ` Daniel Vetter
[not found] <20200227181522.2711142-1-daniel.vetter@ffwll.ch>
2020-02-27 18:14 ` Daniel Vetter
[not found] <20200221210319.2245170-1-daniel.vetter@ffwll.ch>
2020-02-21 21:02 ` Daniel Vetter
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