diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/component.c | 3 | ||||
| -rw-r--r-- | drivers/base/devres.c | 12 |
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/base/component.c b/drivers/base/component.c index d63e01f4851d..a482708566bc 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -588,6 +588,9 @@ static void component_unbind(struct component *component, { WARN_ON(!component->bound); + dev_dbg(adev->parent, "unbinding %s component %p (ops %ps)\n", + dev_name(component->dev), component, component->ops); + if (component->ops && component->ops->unbind) component->ops->unbind(component->dev, adev->parent, data); component->bound = false; diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 93e7779ef21e..d8a733ea5e1a 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -576,7 +576,10 @@ void *devres_open_group(struct device *dev, void *id, gfp_t gfp) } EXPORT_SYMBOL_GPL(devres_open_group); -/* Find devres group with ID @id. If @id is NULL, look for the latest. */ +/* + * Find devres group with ID @id. If @id is NULL, look for the latest open + * group. + */ static struct devres_group *find_group(struct device *dev, void *id) { struct devres_node *node; @@ -687,6 +690,13 @@ int devres_release_group(struct device *dev, void *id) spin_unlock_irqrestore(&dev->devres_lock, flags); release_nodes(dev, &todo); + } else if (list_empty(&dev->devres_head)) { + /* + * dev is probably dying via devres_release_all(): groups + * have already been removed and are on the process of + * being released - don't touch and don't warn. + */ + spin_unlock_irqrestore(&dev->devres_lock, flags); } else { WARN_ON(1); spin_unlock_irqrestore(&dev->devres_lock, flags); |