[Xen-changelog] [xen-unstable] Avoid warn_unused_result build failure on fgets().

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1227789805 0
# Node ID 8d5474a5c66bff3cea07998cafb30817e5b7970c
# Parent  840b761e07c1f8b6146584df320ddbd6bce07fae
Avoid warn_unused_result build failure on fgets().
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
 xen/tools/symbols.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -r 840b761e07c1 -r 8d5474a5c66b xen/tools/symbols.c
--- a/xen/tools/symbols.c       Thu Nov 27 11:24:52 2008 +0000
+++ b/xen/tools/symbols.c       Thu Nov 27 12:43:25 2008 +0000
@@ -81,7 +81,8 @@ static int read_symbol(FILE *in, struct 
        if (rc != 3) {
                if (rc != EOF) {
                        /* skip line */
-                       fgets(str, 500, in);
+                       if (fgets(str, 500, in) == NULL)
+                               return -1; /* must check fgets result */
                }
                return -1;
        }

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