[PATCH] sha1_file: link() returns -1 on failure, not errno

From: Thomas Rast <trast@student.ethz.ch>
Date: Sep 18, 2008, 22:24 UTC
Message-ID: <1221776686-13284-1-git-send-email-trast@student.ethz.ch>

5723fe7 changed the call to use link() directly instead of through a custom wrapper, but forgot that it returns 0 or -1, not 0 or errno.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>

---
 sha1_file.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/sha1_file.c b/sha1_file.c
index 9ee1ed1..aec81bb 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2136,7 +2136,9 @@ static void write_sha1_file_prepare(const void *buf, unsigned long len,
  */
 int move_temp_to_file(const char *tmpfile, const char *filename)
 {
-	int ret = link(tmpfile, filename);
+	int ret = 0;
+	if (link(tmpfile, filename))
+		ret = errno;
 
 	/*
 	 * Coda hack - coda doesn't like cross-directory links,

-- 
tg: (97d7fee..) t/link-returns-minus1 (depends on: origin/master)