Documentation: configfs examples crash fix
When configfs_register_subsystem() fails, we unregister too many
subsystems in configfs_example_init. Decrement i by one to not unregister
non-registered subsystem.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/filesystems/configfs/configfs_example_explicit.c b/Documentation/filesystems/configfs/configfs_example_explicit.c
index fd53869f..1420233 100644
--- a/Documentation/filesystems/configfs/configfs_example_explicit.c
+++ b/Documentation/filesystems/configfs/configfs_example_explicit.c
@@ -464,9 +464,8 @@
return 0;
out_unregister:
- for (; i >= 0; i--) {
+ for (i--; i >= 0; i--)
configfs_unregister_subsystem(example_subsys[i]);
- }
return ret;
}
@@ -475,9 +474,8 @@
{
int i;
- for (i = 0; example_subsys[i]; i++) {
+ for (i = 0; example_subsys[i]; i++)
configfs_unregister_subsystem(example_subsys[i]);
- }
}
module_init(configfs_example_init);
