diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 723b31dc7dac..1989258aef8a 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -807,6 +807,12 @@ static int ext2_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	    (first_block << blkbits) < i_size_read(inode))
 		create = 0;
 
+	ret = ext2_get_blocks(inode, first_block, max_blocks,
+			&bno, &new, &boundary, create);
+	if (ret < 0)
+		return ret;
+
+	iomap->flags = 0;
 	/*
 	 * Writes that span EOF might trigger an IO size update on completion,
 	 * so consider them to be dirty for the purposes of O_DSYNC even if
@@ -814,13 +820,6 @@ static int ext2_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	 */
 	if ((flags & IOMAP_WRITE) && offset + length > i_size_read(inode))
 		iomap->flags |= IOMAP_F_DIRTY;
-
-	ret = ext2_get_blocks(inode, first_block, max_blocks,
-			&bno, &new, &boundary, create);
-	if (ret < 0)
-		return ret;
-
-	iomap->flags = 0;
 	iomap->offset = (u64)first_block << blkbits;
 	iomap->bdev = inode->i_sb->s_bdev;