sysfs: Removed dup_name entirely in sysfs_rename

Since no one using "dup_name", removed it completely in sysfs_rename.

Signed-off-by: Sasikantha babu <sasikanth.v19@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 35a36d39fa2c..24fa995f0312 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -858,7 +858,6 @@ int sysfs_rename(struct sysfs_dirent *sd,
         struct sysfs_dirent *new_parent_sd, const void *new_ns,
         const char *new_name)
 {
-        const char *dup_name = NULL;
         int error;
 
         mutex_lock(&sysfs_mutex);
@@ -875,11 +874,11 @@ int sysfs_rename(struct sysfs_dirent *sd,
         /* rename sysfs_dirent */
         if (strcmp(sd->s_name, new_name) != 0) {
                 error = -ENOMEM;
-                new_name = dup_name = kstrdup(new_name, GFP_KERNEL);
+                new_name = kstrdup(new_name, GFP_KERNEL);
                 if (!new_name)
                         goto out;
 
-                dup_name = sd->s_name;
+                kfree(sd->s_name);
                 sd->s_name = new_name;
         }
 
@@ -895,7 +894,6 @@ int sysfs_rename(struct sysfs_dirent *sd,
         error = 0;
  out:
         mutex_unlock(&sysfs_mutex);
-        kfree(dup_name);
         return error;
 }