1 files changed, 1 insertions, 0 deletions

diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 5ecf3e3e86aa..d72c83d22ee0 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -608,6 +608,7 @@ xfs_iomap_eof_want_preallocate(
         count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
         while (count_fsb > 0) {
                 imaps = nimaps;
+                firstblock = NULLFSBLOCK;
                 error = XFS_BMAPI(mp, NULL, io, start_fsb, count_fsb,
                                   0, &firstblock, 0, imap, &imaps, NULL);
                 if (error)