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drm/nouveau/drm/nouveau: Don't forget to cancel hpd_work on suspend/unload

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commit 2f7ca781fd382cf8dde73ed36dfdd93fd05b3332 upstream.

Currently, there's nothing in nouveau that actually cancels this work
struct. So, cancel it on suspend/unload. Otherwise, if we're unlucky
enough hpd_work might try to keep running up until the system is
suspended.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lyude Paul 2018-08-07 17:32:48 -04:00 committed by Greg Kroah-Hartman
parent 42387d8e4a
commit 9ac837e079
3 changed files with 8 additions and 5 deletions
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9
drivers/gpu/drm/nouveau/nouveau_display.c
View File

@ -426,7 +426,7 @@ nouveau_display_init(struct drm_device *dev)
}
void
nouveau_display_fini(struct drm_device *dev, bool suspend)
nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
{
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
@ -451,6 +451,9 @@ nouveau_display_fini(struct drm_device *dev, bool suspend)
}
drm_connector_list_iter_end(&conn_iter);
if (!runtime)
cancel_work_sync(&drm->hpd_work);
drm_kms_helper_poll_disable(dev);
disp->fini(dev);
}
@ -640,11 +643,11 @@ nouveau_display_suspend(struct drm_device *dev, bool runtime)
}
}
nouveau_display_fini(dev, true);
nouveau_display_fini(dev, true, runtime);
return 0;
}
nouveau_display_fini(dev, true);
nouveau_display_fini(dev, true, runtime);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_framebuffer *nouveau_fb;

2
drivers/gpu/drm/nouveau/nouveau_display.h
View File

@ -64,7 +64,7 @@ nouveau_display(struct drm_device *dev)
int nouveau_display_create(struct drm_device *dev);
void nouveau_display_destroy(struct drm_device *dev);
int nouveau_display_init(struct drm_device *dev);
void nouveau_display_fini(struct drm_device *dev, bool suspend);
void nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime);
int nouveau_display_suspend(struct drm_device *dev, bool runtime);
void nouveau_display_resume(struct drm_device *dev, bool runtime);
int nouveau_display_vblank_enable(struct drm_device *, unsigned int);

2
drivers/gpu/drm/nouveau/nouveau_drm.c
View File

@ -546,7 +546,7 @@ nouveau_drm_unload(struct drm_device *dev)
nouveau_debugfs_fini(drm);
if (dev->mode_config.num_crtc)
nouveau_display_fini(dev, false);
nouveau_display_fini(dev, false, false);
nouveau_display_destroy(dev);
nouveau_bios_takedown(dev);