From: Kirill A. Shutemov <kirill@shutemov.name>
Date: Fri, 25 Dec 2009 18:19:22 +0000 (+0000)
Subject: block.c: fix warning with _FORTIFY_SOURCE
X-Git-Tag: v0.13.0-rc0~1815
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=114cdfa908520ccc624fc8e5409252dc6e980f8a;p=thirdparty%2Fqemu.git

block.c: fix warning with _FORTIFY_SOURCE

  CC    block.o
cc1: warnings being treated as errors
block.c: In function 'bdrv_open2':
block.c:400: error: ignoring return value of 'realpath', declared with attribute warn_unused_result

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---

diff --git a/block.c b/block.c
index 3f3496ec90a..30ae2b1e54f 100644
--- a/block.c
+++ b/block.c
@@ -396,8 +396,8 @@ int bdrv_open2(BlockDriverState *bs, const char *filename, int flags,
         if (is_protocol)
             snprintf(backing_filename, sizeof(backing_filename),
                      "%s", filename);
-        else
-            realpath(filename, backing_filename);
+        else if (!realpath(filename, backing_filename))
+            return -errno;
 
         bdrv_qcow2 = bdrv_find_format("qcow2");
         options = parse_option_parameters("", bdrv_qcow2->create_options, NULL);