On 19.12.2014 18:15, Martin Kletzander wrote:
Commit 1a80b97d, which added the virCgroupHasEmptyTasks() function
forgot that the parameter @cgroup may be NULL and did not check that.

Signed-off-by: Martin Kletzander <mklet...@redhat.com>
---
  src/util/vircgroup.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index 4857ef3..64bc647 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -3932,6 +3932,9 @@ virCgroupHasEmptyTasks(virCgroupPtr cgroup, int 
controller)
      int ret = -1;
      char *content = NULL;

+    if (!cgroup)
+        return -1;
+
      ret = virCgroupGetValueStr(cgroup, controller, "tasks", &content);

      if (ret == 0 && content[0] == '\0')


ACK

Michal

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