powerpc/debug: Add missing warn flag to WARN_ON's non-builtin path

[karo-tx-linux.git] / mm / filemap.c

diff --git a/mm/filemap.c b/mm/filemap.c
index b7b973b47d8d9c498d9cafc83bfa2a21ea33e757..6f1be573a5e60fbb0c4a6cbcf85df9b32b0fc673 100644 (file)
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2050,7 +2050,7 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
                        iocb->ki_pos += retval;
                        count -= retval;
                }
-               iov_iter_revert(iter, iov_iter_count(iter) - count);
+               iov_iter_revert(iter, count - iov_iter_count(iter));
 
                /*
                 * Btrfs can have a short DIO read if we encounter