From d9a494edded9388b1df4612ed64c794c4b1a35bc Mon Sep 17 00:00:00 2001
From: Richard Aas <richard@db.org>
Date: Wed, 26 Oct 2011 07:08:26 +0000
Subject: [PATCH] dbg: check fwrite return value to avoid warning

---
 src/dbg/dbg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/dbg/dbg.c b/src/dbg/dbg.c
index 783f66e..52e7e67 100644
--- a/src/dbg/dbg.c
+++ b/src/dbg/dbg.c
@@ -207,8 +207,8 @@ static void dbg_fmt_vprintf(int level, const char *fmt, va_list ap)
 
 	/* Output to file */
 	if (dbg.f) {
-		(void)fwrite(buf, 1, len, dbg.f);
-		(void)fflush(dbg.f);
+		if (fwrite(buf, 1, len, dbg.f) > 0)
+			(void)fflush(dbg.f);
 	}
 
  out: