[PATCH 03/12] utils/gcore.c: fix unused result warning

[dnietoc]

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

    ../../utils/gcore.c: In function 'main':
    ../../utils/gcore.c:78:11: warning: ignoring return value of 'asprintf' 
declared with attribute 'warn_unused_result' [-Wunused-result]
---
 utils/gcore.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/utils/gcore.c b/utils/gcore.c
index 27bd2fcd..8ed0ab59 100644
--- a/utils/gcore.c
+++ b/utils/gcore.c
@@ -44,6 +44,7 @@ main (int argc, char **argv)
   int status = 0;
   file_t crashserv;
   int argi;
+  error_t err;
 
   argp_parse (&argp, argc, argv, 0, &argi, 0);
 
@@ -75,7 +76,9 @@ main (int argc, char **argv)
        {
          file_t file;
          char *name = 0;
-         asprintf (&name, "core.%d", pid);
+         err = asprintf (&name, "core.%d", pid);
+         if (err == -1)
+           error (1, errno, "cannot allocate filename for pid %d", pid);
 
          file = file_name_lookup (name, O_WRONLY|O_CREAT,
                                          0600 &~ getumask ());
@@ -86,7 +89,7 @@ main (int argc, char **argv)
            }
          else
            {
-             error_t err = crash_dump_task (crashserv, task, file,
+             err = crash_dump_task (crashserv, task, file,
                                             0, 0, 0, 0, 0, 0,
                                             MACH_PORT_NULL,
                                             MACH_MSG_TYPE_COPY_SEND);
-- 
2.51.0