diff options
Diffstat (limited to 'fs/sysfs/dir.c')
| -rw-r--r-- | fs/sysfs/dir.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 352d26d98c0a..26f370a9b5ce 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -384,6 +384,13 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) { struct sysfs_inode_attrs *ps_iattr; + if (!!sysfs_ns_type(acxt->parent_sd) != !!sd->s_ns) { + WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n", + sysfs_ns_type(acxt->parent_sd)? "required": "invalid", + acxt->parent_sd->s_name, sd->s_name); + return -EINVAL; + } + if (sysfs_find_dirent(acxt->parent_sd, sd->s_ns, sd->s_name)) return -EEXIST; @@ -542,6 +549,13 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd, { struct sysfs_dirent *sd; + if (!!sysfs_ns_type(parent_sd) != !!ns) { + WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n", + sysfs_ns_type(parent_sd)? "required": "invalid", + parent_sd->s_name, name); + return NULL; + } + for (sd = parent_sd->s_dir.children; sd; sd = sd->s_sibling) { if (sd->s_ns != ns) continue; |