[PATCH 02/12] utils/mount.c: fix unused result warnings

[dnietoc]

From: Diego Nieto Cid <dnie...@gmail.com>

    ../../utils/mount.c: In function 'do_query':
    ../../utils/mount.c:589:15: warning: ignoring return value of 'asprintf' 
declared with attribute 'warn_unused_result' [-Wunused-result]
---
 utils/mount.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/utils/mount.c b/utils/mount.c
index 898e0569..d63e89b5 100644
--- a/utils/mount.c
+++ b/utils/mount.c
@@ -586,8 +586,11 @@ do_query (struct fs *fs)
          opts_len -= strlen (device) + 1;
          if (!strncmp (type_opt, argv[nopts - 1], sizeof type_opt - 1))
            {
-             asprintf ((char **) &device, "%s:%s",
-                       &argv[nopts - 1][sizeof type_opt - 1], device);
+             err = asprintf ((char **) &device, "%s:%s",
+                             &argv[nopts - 1][sizeof type_opt - 1], device);
+             if (err == -1)
+               error (1, errno, "asprintf failed");
+
              opts_len -= strlen (argv[nopts - 1]) + 1;
            }
        }
-- 
2.51.0