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authorLyude Paul <lyude@redhat.com>2018-08-07 17:32:48 -0400
committerBen Skeggs <bskeggs@redhat.com>2018-09-07 06:54:27 +1000
commit2f7ca781fd382cf8dde73ed36dfdd93fd05b3332 (patch)
tree782a963981c48fddd575cb89c961793617814565 /drivers/gpu
parentdrm/nouveau/drm/nouveau: Prevent handling ACPI HPD events too early (diff)
downloadlinux-dev-2f7ca781fd382cf8dde73ed36dfdd93fd05b3332.tar.xz
linux-dev-2f7ca781fd382cf8dde73ed36dfdd93fd05b3332.zip
drm/nouveau/drm/nouveau: Don't forget to cancel hpd_work on suspend/unload
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>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_display.c9
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_display.h2
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.c2
3 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index e4024af5a46f..540c0cbbfcee 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -442,7 +442,7 @@ 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);
@@ -467,6 +467,9 @@ 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);
}
@@ -635,11 +638,11 @@ 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;
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h b/drivers/gpu/drm/nouveau/nouveau_display.h
index 54aa7c3fa42d..ff92b54ce448 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -62,7 +62,7 @@ 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);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 04f704b77a3c..f1a119113d04 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -627,7 +627,7 @@ 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);