sysfs: Update the name hash for an entry after changing the namespace

This is needed to allow renaming network devices that have been moved
to another network namespace.

Signed-off-by: Tom Goff <thomas.goff@boeing.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 2a7a3f5d1ca6..8ddc1021c79a 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -878,7 +878,6 @@ int sysfs_rename(struct sysfs_dirent *sd,
 
                 dup_name = sd->s_name;
                 sd->s_name = new_name;
-                sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name);
         }
 
         /* Move to the appropriate place in the appropriate directories rbtree. */
@@ -886,6 +885,7 @@ int sysfs_rename(struct sysfs_dirent *sd,
         sysfs_get(new_parent_sd);
         sysfs_put(sd->s_parent);
         sd->s_ns = new_ns;
+        sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name);
         sd->s_parent = new_parent_sd;
         sysfs_link_sibling(sd);