ext4: remove unnecessary conditionals

iput() has already handled null and non-null parameter, so it is no
need to use if().

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Link: https://lore.kernel.org/r/20220411032337.2517465-1-lv.ruyi@zte.com.cn
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/fast_commit.c

@@ -1659,8 +1659,7 @@ static int ext4_fc_replay_create(struct super_block *sb, struct ext4_fc_tl *tl,
  set_nlink(inode, 1);
  ext4_mark_inode_dirty(NULL, inode);
 out:
- if (inode)
- iput(inode);
+ iput(inode);
  return ret;
 }
 

fs/ext4/namei.c

@@ -3363,8 +3363,7 @@ static int ext4_symlink(struct user_namespace *mnt_userns, struct inode *dir,
  err = ext4_add_nondir(handle, dentry, &inode);
  if (handle)
  ext4_journal_stop(handle);
- if (inode)
- iput(inode);
+ iput(inode);
  goto out_free_encrypted_link;
 
 err_drop_inode: