ext4: make ext4_zeroout_es() return void

After ext4_es_insert_extent() returns void, the return value in
ext4_zeroout_es() is also unnecessary, so make it return void too.
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230424033846.4732-13-libaokun1@huawei.comSigned-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/extents.c

@@ -3123,7 +3123,7 @@ void ext4_ext_release(struct super_block *sb)
 #endif
 }
 
-static int ext4_zeroout_es(struct inode *inode, struct ext4_extent *ex)
+static void ext4_zeroout_es(struct inode *inode, struct ext4_extent *ex)
 {
 	ext4_lblk_t  ee_block;
 	ext4_fsblk_t ee_pblock;
@@ -3134,11 +3134,10 @@ static int ext4_zeroout_es(struct inode *inode, struct ext4_extent *ex)
 	ee_pblock = ext4_ext_pblock(ex);
 
 	if (ee_len == 0)
-		return 0;
+		return;
 
 	ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock,
 			      EXTENT_STATUS_WRITTEN);
-	return 0;
 }
 
 /* FIXME!! we need to try to merge to left or right after zero-out  */
@@ -3288,7 +3287,7 @@ static int ext4_split_extent_at(handle_t *handle,
 			err = ext4_ext_dirty(handle, inode, path + path->p_depth);
 			if (!err)
 				/* update extent status tree */
-				err = ext4_zeroout_es(inode, &zero_ex);
+				ext4_zeroout_es(inode, &zero_ex);
 			/* If we failed at this point, we don't know in which
 			 * state the extent tree exactly is so don't try to fix
 			 * length of the original extent as it may do even more
@@ -3641,9 +3640,8 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 out:
 	/* If we have gotten a failure, don't zero out status tree */
 	if (!err) {
-		err = ext4_zeroout_es(inode, &zero_ex1);
-		if (!err)
-			err = ext4_zeroout_es(inode, &zero_ex2);
+		ext4_zeroout_es(inode, &zero_ex1);
+		ext4_zeroout_es(inode, &zero_ex2);
 	}
 	return err ? err : allocated;
 }