cgset: fix misleading error message

When cgset fails to modify a cgroup, it output a
hardcoded error message which can cause user confusion.
This commit updates the error message to behave like
other error messages throughout libcgroup and produce
a more user-friendly output.

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
Acked-by: Nikola Forró <nforro@redhat.com>

diff --git a/src/tools/cgset.c b/src/tools/cgset.c
index ea9f90d3eaec478529e8345c6570e56b2463100b..223978656caeba1078646daf416cd455c21fc59b 100644 (file)
--- a/src/tools/cgset.c
+++ b/src/tools/cgset.c
@@ -231,9 +231,8 @@ int main(int argc, char *argv[])
                /* modify cgroup based on values of the new one */
                ret = cgroup_modify_cgroup(cgroup);
                if (ret) {
-                       fprintf(stderr, "%s: "
-                               "the group can't be modified\n",
-                               argv[0]);
+                       fprintf(stderr, "%s: cgroup modify error: %s \n",
+                               argv[0], cgroup_strerror(ret));
                        goto cgroup_free_err;
                }