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taskstats: use genl_register_family_with_ops()

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This simplifies the code since there's no longer a
need to have error handling in the registration.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johannes Berg 2013-11-14 17:14:39 +01:00 committed by David S. Miller
parent 1e9f3d6f1c
commit 88d36a9949
1 changed files with 14 additions and 25 deletions
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39
kernel/taskstats.c
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@ -673,17 +673,18 @@ err:
nlmsg_free(rep_skb);
}
static struct genl_ops taskstats_ops = {
.cmd = TASKSTATS_CMD_GET,
.doit = taskstats_user_cmd,
.policy = taskstats_cmd_get_policy,
.flags = GENL_ADMIN_PERM,
};
static struct genl_ops cgroupstats_ops = {
.cmd = CGROUPSTATS_CMD_GET,
.doit = cgroupstats_user_cmd,
.policy = cgroupstats_cmd_get_policy,
static struct genl_ops taskstats_ops[] = {
{
.cmd = TASKSTATS_CMD_GET,
.doit = taskstats_user_cmd,
.policy = taskstats_cmd_get_policy,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = CGROUPSTATS_CMD_GET,
.doit = cgroupstats_user_cmd,
.policy = cgroupstats_cmd_get_policy,
},
};
/* Needed early in initialization */
@ -702,26 +703,14 @@ static int __init taskstats_init(void)
{
int rc;
rc = genl_register_family(&family);
rc = genl_register_family_with_ops(&family, taskstats_ops,
ARRAY_SIZE(taskstats_ops));
if (rc)
return rc;
rc = genl_register_ops(&family, &taskstats_ops);
if (rc < 0)
goto err;
rc = genl_register_ops(&family, &cgroupstats_ops);
if (rc < 0)
goto err_cgroup_ops;
family_registered = 1;
pr_info("registered taskstats version %d\n", TASKSTATS_GENL_VERSION);
return 0;
err_cgroup_ops:
genl_unregister_ops(&family, &taskstats_ops);
err:
genl_unregister_family(&family);
return rc;
}
/*