From 6b0084266c1d4917ad9259759a1e7bd623cb3888 Mon Sep 17 00:00:00 2001 From: Jonas Bonn Date: Thu, 16 Apr 2009 09:00:02 +0200 Subject: drm: set/clear is_master when master changed The variable is_master is being used to track the drm_file that is currently master, so its value needs to be updated accordingly when the master is changed. Signed-off-by: Jonas Bonn Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_stub.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/drm_stub.c') diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index d009661781b..1b3e0ff57b4 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -159,6 +159,9 @@ void drm_master_put(struct drm_master **master) int drm_setmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { + if (file_priv->is_master) + return 0; + if (file_priv->minor->master && file_priv->minor->master != file_priv->master) return -EINVAL; @@ -169,6 +172,7 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, file_priv->minor->master != file_priv->master) { mutex_lock(&dev->struct_mutex); file_priv->minor->master = drm_master_get(file_priv->master); + file_priv->is_master = 1; mutex_unlock(&dev->struct_mutex); } @@ -178,10 +182,12 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, int drm_dropmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { - if (!file_priv->master) + if (!file_priv->is_master) return -EINVAL; + mutex_lock(&dev->struct_mutex); drm_master_put(&file_priv->minor->master); + file_priv->is_master = 0; mutex_unlock(&dev->struct_mutex); return 0; } -- cgit v1.2.3 From 07f1c7a7f6736d9ec2eba57d209c5f48888d841e Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 20 Apr 2009 09:32:50 +1000 Subject: drm: check for minor master before allowing drop master. When fast user switching a lot eventually we get to the point, where we were checking for the wrong thing in this function. Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_stub.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/drm/drm_stub.c') diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index 1b3e0ff57b4..ef878615c49 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -185,6 +185,9 @@ int drm_dropmaster_ioctl(struct drm_device *dev, void *data, if (!file_priv->is_master) return -EINVAL; + if (!file_priv->minor->master) + return -EINVAL; + mutex_lock(&dev->struct_mutex); drm_master_put(&file_priv->minor->master); file_priv->is_master = 0; -- cgit v1.2.3 From 30ddbd94401a132f4d932775d1902b3c9a8c41b5 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 2 Mar 2009 11:13:04 +1000 Subject: drm: clean the map list before destroying the hash table The hash tables contains some of the mapping so its really nice to have it for the deletion phase. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_stub.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/drm_stub.c') diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index ef878615c49..e8c2fd4c5e6 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -502,11 +502,11 @@ void drm_put_dev(struct drm_device *dev) dev->agp = NULL; } - drm_ht_remove(&dev->map_hash); - drm_ctxbitmap_cleanup(dev); - list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) drm_rmmap(dev, r_list->map); + drm_ht_remove(&dev->map_hash); + + drm_ctxbitmap_cleanup(dev); if (drm_core_check_feature(dev, DRIVER_MODESET)) drm_put_minor(&dev->control); -- cgit v1.2.3 From 3788f48a0fad246dbab826e8b2f07b403b0e3279 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 2 Mar 2009 10:37:44 +1000 Subject: drm: cleanup properly in drm_get_dev() failure paths Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_stub.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/drm_stub.c') diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index e8c2fd4c5e6..b9631e3a1ea 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -402,14 +402,14 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, if (dev->driver->load) { ret = dev->driver->load(dev, ent->driver_data); if (ret) - goto err_g3; + goto err_g4; } /* setup the grouping for the legacy output */ if (drm_core_check_feature(dev, DRIVER_MODESET)) { ret = drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); if (ret) - goto err_g3; + goto err_g4; } list_add_tail(&dev->driver_item, &driver->device_list); @@ -420,8 +420,11 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, return 0; -err_g3: +err_g4: drm_put_minor(&dev->primary); +err_g3: + if (drm_core_check_feature(dev, DRIVER_MODESET)) + drm_put_minor(&dev->control); err_g2: pci_disable_device(pdev); err_g1: -- cgit v1.2.3