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-rw-r--r--fs/sysfs/dir.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index b2b83067ccc8..a63eb4ba7867 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -383,12 +383,6 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
if (sysfs_find_dirent(acxt->parent_sd, sd->s_ns, sd->s_name))
return -EEXIST;
- if (sysfs_ns_type(acxt->parent_sd) && !sd->s_ns) {
- WARN(1, KERN_WARNING "sysfs: ns required in '%s' for '%s'\n",
- acxt->parent_sd->s_name, sd->s_name);
- return -EINVAL;
- }
-
sd->s_parent = sysfs_get(acxt->parent_sd);
sysfs_link_sibling(sd);
@@ -545,7 +539,7 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
struct sysfs_dirent *sd;
for (sd = parent_sd->s_dir.children; sd; sd = sd->s_sibling) {
- if (sd->s_ns != ns)
+ if (ns && sd->s_ns && (sd->s_ns != ns))
continue;
if (!strcmp(sd->s_name, name))
return sd;
@@ -879,7 +873,7 @@ static struct sysfs_dirent *sysfs_dir_pos(const void *ns,
while (pos && (ino > pos->s_ino))
pos = pos->s_sibling;
}
- while (pos && pos->s_ns != ns)
+ while (pos && pos->s_ns && pos->s_ns != ns)
pos = pos->s_sibling;
return pos;
}
@@ -890,7 +884,7 @@ static struct sysfs_dirent *sysfs_dir_next_pos(const void *ns,
pos = sysfs_dir_pos(ns, parent_sd, ino, pos);
if (pos)
pos = pos->s_sibling;
- while (pos && pos->s_ns != ns)
+ while (pos && pos->s_ns && pos->s_ns != ns)
pos = pos->s_sibling;
return pos;
}