From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 3 Nov 2010 00:20:03 +0000 (+1030)
Subject: tdb2: fix gcc -O3 warnings on test/layout.c
X-Git-Url: http://git.ozlabs.org/?p=ccan;a=commitdiff_plain;h=54c087e9b147c70a06fe5e7543e39aa70d406b6d

tdb2: fix gcc -O3 warnings on test/layout.c

Warnings about ignored returns, and uninitialized len after case statement.
---

diff --git a/ccan/tdb2/test/layout.c b/ccan/tdb2/test/layout.c
index 27c2d045..04111b4a 100644
--- a/ccan/tdb2/test/layout.c
+++ b/ccan/tdb2/test/layout.c
@@ -237,6 +237,8 @@ struct tdb_context *tdb_layout_get(struct tdb_layout *layout)
 		case HASHTABLE:
 			len = hashtable_len(&e->hashtable);
 			break;
+		default:
+			abort();
 		}
 		off += len;
 		assert(zone_left >= len);
@@ -311,7 +313,8 @@ struct tdb_context *tdb_layout_get(struct tdb_layout *layout)
 			      0600);
 		if (fd < 0)
 			err(1, "opening %s for writing", layout->filename);
-		write(fd, tdb->map_ptr, tdb->map_size);
+		if (write(fd, tdb->map_ptr, tdb->map_size) != tdb->map_size)
+			err(1, "writing %s", layout->filename);
 		close(fd);
 		tdb_close(tdb);
 		/* NOMMAP is for lockcheck. */