Add cgroup_free_group_spec procedure which free cgroups_group_spec 
variable.

Signed-off-by: Ivana Varekova <[email protected]>
---

 src/tools/tools-common.c |   27 +++++++++++++++++++++++++++
 src/tools/tools-common.h |    5 +++++
 2 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/src/tools/tools-common.c b/src/tools/tools-common.c
index b80ae3c..db46f6e 100644
--- a/src/tools/tools-common.c
+++ b/src/tools/tools-common.c
@@ -86,3 +86,30 @@ int parse_cgroup_spec(struct cgroup_group_spec *cdptr[], 
char *optarg)
 
        return 0;
 }
+
+
+/**
+ * Free a single cgroup_group_spec structure
+ * <--->@param cl The structure to free from memory.
+ */
+void cgroup_free_group_spec(struct cgroup_group_spec *cl)
+{
+       /* Loop variable */
+       int i = 0;
+
+       /* Make sure our structure is not NULL, first. */
+       if (!cl) {
+               cgroup_dbg("Warning: Attempted to free NULL rule.\n");
+               return;
+       }
+
+       /* We must free any used controller strings, too. */
+       for (i = 0; i < CG_CONTROLLER_MAX; i++) {
+               if (cl->controllers[i])
+                       free(cl->controllers[i]);
+       }
+
+       free(cl);
+}
+
+
diff --git a/src/tools/tools-common.h b/src/tools/tools-common.h
index 3437973..65d87c7 100644
--- a/src/tools/tools-common.h
+++ b/src/tools/tools-common.h
@@ -50,5 +50,10 @@ struct cgroup_group_spec {
  */
 int parse_cgroup_spec(struct cgroup_group_spec *cdptr[], char *optarg);
 
+/**
+ * Free a single cgroup_group_spec structure.
+ *     @param cl The structure to free from memory
+ */
+void cgroup_free_group_spec(struct cgroup_group_spec *cl);
 
 #endif /* TOOLS_COMMON */


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