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.cnSigned-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: