diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index de4d3baec16167e71f87d10d80c4491c87a828a1..e24c0a69ff5d43c72ee3e183c230b2adad639331 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -3161,6 +3161,7 @@ static long btrfs_fallocate(struct file *file, int mode,
 			ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
 					cur_offset, last_byte - cur_offset);
 			if (ret < 0) {
+				cur_offset = last_byte;
 				free_extent_map(em);
 				break;
 			}
@@ -3210,7 +3211,7 @@ static long btrfs_fallocate(struct file *file, int mode,
 	/* Let go of our reservation. */
 	if (ret != 0 && !(mode & FALLOC_FL_ZERO_RANGE))
 		btrfs_free_reserved_data_space(inode, data_reserved,
-				alloc_start, alloc_end - cur_offset);
+				cur_offset, alloc_end - cur_offset);
 	extent_changeset_free(data_reserved);
 	return ret;
 }