From 865c44f21c92971c2f64074dc69ac56a891b8e79 Mon Sep 17 00:00:00 2001
From: Michel Machado <michel@digirati.com.br>
Date: Tue, 19 Dec 2017 15:22:48 -0500
Subject: [PATCH] f3write: fix saved_error bug

When measure() fails at the very last end of a file,
@remaining is zero.
Since @saved_errno is not ENOSPC, but @remaining is zero,
the code was considering that the file was properly written.
---
 f3write.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/f3write.c b/f3write.c
index aa6d851..a3a0142 100644
--- a/f3write.c
+++ b/f3write.c
@@ -540,7 +540,9 @@ static int create_and_fill_file(const char *path, long number, size_t size,
 	close(fd);
 	free(full_fn);
 
-	if (saved_errno == ENOSPC || remaining == 0) {
+	if (saved_errno == 0 || saved_errno == ENOSPC) {
+		if (saved_errno == 0)
+			assert(remaining == 0);
 		printf("OK!\n");
 		return saved_errno == ENOSPC;
 	}