[PATCH 1/3] create_symref: check error return from open().

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Signed-off-by: Junio C Hamano <junkio@xxxxxxx>
---

 * There seem to be similarly "casual" users of open in the rest
   of the code, but I noticed this while looking at your series.
   I've already done the necessary shuffling in my tree, so
   there is no need to resend your "move create_symref()".

 refs.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/refs.c b/refs.c
index 0840b3b..12e46b8 100644
--- a/refs.c
+++ b/refs.c
@@ -331,7 +331,11 @@ int create_symref(const char *ref_target, const char *refs_heads_master)
 		return -1;
 	}
 	lockpath = mkpath("%s.lock", git_HEAD);
-	fd = open(lockpath, O_CREAT | O_EXCL | O_WRONLY, 0666);	
+	fd = open(lockpath, O_CREAT | O_EXCL | O_WRONLY, 0666);
+	if (fd < 0) {
+		error("Unable to open %s for writing", lockpath);
+		return -5;
+	}
 	written = write_in_full(fd, ref, len);
 	close(fd);
 	if (written != len) {
-- 
1.5.0.rc2.g8ac6-dirty



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