Smack: remove set but not used variable 'root_inode'

Fixes gcc '-Wunused-but-set-variable' warning:

security/smack/smackfs.c: In function 'smk_fill_super':
security/smack/smackfs.c:2856:16: warning:
 variable 'root_inode' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index f6482e53d55a..06b517075ec0 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -2853,7 +2853,6 @@ static const struct file_operations smk_ptrace_ops = {
 static int smk_fill_super(struct super_block *sb, void *data, int silent)
 {
         int rc;
-        struct inode *root_inode;
 
         static const struct tree_descr smack_files[] = {
                 [SMK_LOAD] = {
@@ -2917,8 +2916,6 @@ static int smk_fill_super(struct super_block *sb, void *data, int silent)
                 return rc;
         }
 
-        root_inode = d_inode(sb->s_root);
-
         return 0;
 }