Avoid warn_unused_result build failure on fgets().

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

diff --git a/xen/tools/symbols.c b/xen/tools/symbols.c
index 76eb88b585c97d0966dec3b4c3efb0c773b871db..bf632d7aeae73c1dc42945bc63addec5ffb06edf 100644 (file)
--- a/xen/tools/symbols.c
+++ b/xen/tools/symbols.c
@@ -81,7 +81,8 @@ static int read_symbol(FILE *in, struct sym_entry *s)
        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;
        }