[Xen-devel] [PATCH] xl: check for libxl_list_vm failure in print_uptime

[Matthew Daley <mattd@xxxxxxxxxxx>]

Signed-off-by: Matthew Daley <mattd@xxxxxxxxxxx>
---
 tools/libxl/xl_cmdimpl.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index bd26bcc..7c5b9ec 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -6245,6 +6245,10 @@ static void print_uptime(int short_mode, uint32_t 
doms[], int nb_doms)
     if (nb_doms == 0) {
         print_dom0_uptime(short_mode, now);
         info = libxl_list_vm(ctx, &nb_vm);
+        if (info == NULL) {
+            fprintf(stderr, "Could not list vms.\n");
+            return;
+        }
         for (i = 0; i < nb_vm; i++)
             print_domU_uptime(info[i].domid, short_mode, now);
         libxl_vminfo_list_free(info, nb_vm);
-- 
1.7.10.4


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