not valid file descriptor is -1 not 0

diff --git a/tools/libxc/xc_core.c b/tools/libxc/xc_core.c
index 19f20f65ad9216f1c885cb34e9a40f1d7dd941d0..a5468023cf091010a74bf4b4ede7691170e66327 100644 (file)
--- a/tools/libxc/xc_core.c
+++ b/tools/libxc/xc_core.c
@@ -108,7 +108,7 @@ xc_domain_dumpcore(int xc_handle,
        free(dump_mem_start);
        return 0;
  error_out:
-       if (dump_fd)
+       if (dump_fd != -1)
                close(dump_fd);
        free(dump_mem_start);
        return -1;