1 files changed, 32 insertions, 13 deletions

diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 3c9eb5624f5e..8c940df97a52 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -21,26 +21,17 @@
 
 #include "sysfs.h"
 
-static int sysfs_do_create_link(struct kobject *kobj, struct kobject *target,
-                                const char *name, int warn)
+static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
+                                   struct kobject *target,
+                                   const char *name, int warn)
 {
-        struct sysfs_dirent *parent_sd = NULL;
         struct sysfs_dirent *target_sd = NULL;
         struct sysfs_dirent *sd = NULL;
         struct sysfs_addrm_cxt acxt;
         enum kobj_ns_type ns_type;
         int error;
 
-        BUG_ON(!name);
-
-        if (!kobj)
-                parent_sd = &sysfs_root;
-        else
-                parent_sd = kobj->sd;
-
-        error = -EFAULT;
-        if (!parent_sd)
-                goto out_put;
+        BUG_ON(!name || !parent_sd);
 
         /* target->sd can go away beneath us but is protected with
          * sysfs_assoc_lock.  Fetch target_sd from it.
@@ -96,6 +87,34 @@ static int sysfs_do_create_link(struct kobject *kobj, struct kobject *target,
 }
 
 /**
+ *      sysfs_create_link_sd - create symlink to a given object.
+ *      @sd:            directory we're creating the link in.
+ *      @target:        object we're pointing to.
+ *      @name:          name of the symlink.
+ */
+int sysfs_create_link_sd(struct sysfs_dirent *sd, struct kobject *target,
+                         const char *name)
+{
+        return sysfs_do_create_link_sd(sd, target, name, 1);
+}
+
+static int sysfs_do_create_link(struct kobject *kobj, struct kobject *target,
+                                const char *name, int warn)
+{
+        struct sysfs_dirent *parent_sd = NULL;
+
+        if (!kobj)
+                parent_sd = &sysfs_root;
+        else
+                parent_sd = kobj->sd;
+
+        if (!parent_sd)
+                return -EFAULT;
+
+        return sysfs_do_create_link_sd(parent_sd, target, name, warn);
+}
+
+/**
  *      sysfs_create_link - create symlink between two objects.
  *      @kobj:  object whose directory we're creating the link in.
  *      @target:        object we're pointing to.