fixed unusued return value compiler warnings due to unchecked write() calls.

Signed-off-by: Chris Ruffin <cmruffin@gmail.com>
---
 firmware/ihex2fw.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/firmware/ihex2fw.c b/firmware/ihex2fw.c
index ba0cf0b..a079bdd 100644
--- a/firmware/ihex2fw.c
+++ b/firmware/ihex2fw.c
@@ -124,8 +124,7 @@ int main(int argc, char **argv)
 	if (process_ihex(data, st.st_size))
 		return 1;
 
-	output_records(outfd);
-	return 0;
+	return output_records(outfd);
 }
 
 static int process_ihex(uint8_t *data, ssize_t size)
@@ -269,11 +268,13 @@ static int output_records(int outfd)
 
 		p->addr = htonl(p->addr);
 		p->len = htons(p->len);
-		write(outfd, &p->addr, writelen);
+		if (write(outfd, &p->addr, writelen) != writelen)
+			return errno;
 		p = p->next;
 	}
 	/* EOF record is zero length, since we don't bother to represent
 	   the type field in the binary version */
-	write(outfd, zeroes, 6);
+	if (write(outfd, zeroes, 6) != 6)
+		return errno;
 	return 0;
 }
-- 
1.7.1

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