From: Randy Dunlap <randy.dunlap@oracle.com>
Date: Sat, 29 Sep 2007 08:11:47 +0000 (-0700)
Subject: fsck.cramfs: clean up gcc warnings
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f8416478da8652d0c5ac7ecefeeb7cc11e1c6fa;p=util-linux

fsck.cramfs: clean up gcc warnings

* clean up code, gcc warnings
  (try compilation with "-Wall -Wp,-D_FORTIFY_SOURCE=2")

Builds cleanly on x86_32 and x86_64.

fsck.cramfs.c:235: warning: ignoring return value of 'read', declared with attribute warn_unused_result

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
---

diff --git a/disk-utils/fsck.cramfs.c b/disk-utils/fsck.cramfs.c
index 117ee6e2..2a63ac90 100644
--- a/disk-utils/fsck.cramfs.c
+++ b/disk-utils/fsck.cramfs.c
@@ -231,7 +231,8 @@ static void test_crc(int start)
 		buf = mmap(NULL, super.size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 		if (buf != MAP_FAILED) {
 			lseek(fd, 0, SEEK_SET);
-			read(fd, buf, super.size);
+			if (read(fd, buf, super.size) < 0)
+				die(FSCK_ERROR, 1, "read failed: %s", filename);
 		}
 	}
 	if (buf != MAP_FAILED) {