From a15d49fd3094cff90e5410ca454a870e0a722fe1 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 16 Apr 2012 15:06:25 +0200 Subject: driver core: check start node in klist_iter_init_node klist_iter_init_node() takes a node as a start argument. However, this node might not be valid anymore. This patch updates the klist_iter_init_node() and dependent functions to return an error if so. All calling functions have been audited to check for a return code here. Signed-off-by: Hannes Reinecke Cc: Greg Kroah-Hartmann Cc: Kay Sievers Cc: Stable Kernel Cc: Linux Kernel Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 10 +++++----- include/linux/klist.h | 2 +- 2 files changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index 5ad17cccdd71..50429b911b21 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -128,7 +128,7 @@ struct subsys_dev_iter { struct klist_iter ki; const struct device_type *type; }; -void subsys_dev_iter_init(struct subsys_dev_iter *iter, +int subsys_dev_iter_init(struct subsys_dev_iter *iter, struct bus_type *subsys, struct device *start, const struct device_type *type); @@ -380,10 +380,10 @@ int class_compat_create_link(struct class_compat *cls, struct device *dev, void class_compat_remove_link(struct class_compat *cls, struct device *dev, struct device *device_link); -extern void class_dev_iter_init(struct class_dev_iter *iter, - struct class *class, - struct device *start, - const struct device_type *type); +extern int class_dev_iter_init(struct class_dev_iter *iter, + struct class *class, + struct device *start, + const struct device_type *type); extern struct device *class_dev_iter_next(struct class_dev_iter *iter); extern void class_dev_iter_exit(struct class_dev_iter *iter); diff --git a/include/linux/klist.h b/include/linux/klist.h index a370ce57cf1d..9f633230f189 100644 --- a/include/linux/klist.h +++ b/include/linux/klist.h @@ -60,7 +60,7 @@ struct klist_iter { extern void klist_iter_init(struct klist *k, struct klist_iter *i); -extern void klist_iter_init_node(struct klist *k, struct klist_iter *i, +extern int klist_iter_init_node(struct klist *k, struct klist_iter *i, struct klist_node *n); extern void klist_iter_exit(struct klist_iter *i); extern struct klist_node *klist_next(struct klist_iter *i); -- cgit v1.2.3