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authorHannes Reinecke <hare@suse.de>2012-04-16 15:06:25 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-18 15:39:52 -0700
commita15d49fd3094cff90e5410ca454a870e0a722fe1 (patch)
treef3e458fa4ce3524f756e0faa48d5ed2400c022bf /include/linux/device.h
parent97ec448aeadff55234368a89c4a07a7ef290a084 (diff)
downloadop-kernel-dev-a15d49fd3094cff90e5410ca454a870e0a722fe1.zip
op-kernel-dev-a15d49fd3094cff90e5410ca454a870e0a722fe1.tar.gz
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 <hare@suse.de> Cc: Greg Kroah-Hartmann <gregkh@linuxfoundation.org> Cc: Kay Sievers <kay@vrfy.org> Cc: Stable Kernel <stable@kernel.org> Cc: Linux Kernel <linux-kernel@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/device.h')
-rw-r--r--include/linux/device.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 5ad17cc..50429b9 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);
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