cgroup: switch to BUG_ON()

Use BUG_ON() rather than an explicit if followed by BUG() for
improved readability and also consistency.

Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 0f41292..8b84db2 100644 (file)
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -2121,10 +2121,8 @@ int __init cpuset_init(void)
 {
        int err = 0;
 
-       if (!alloc_cpumask_var(&top_cpuset.cpus_allowed, GFP_KERNEL))
-               BUG();
-       if (!alloc_cpumask_var(&top_cpuset.effective_cpus, GFP_KERNEL))
-               BUG();
+       BUG_ON(!alloc_cpumask_var(&top_cpuset.cpus_allowed, GFP_KERNEL));
+       BUG_ON(!alloc_cpumask_var(&top_cpuset.effective_cpus, GFP_KERNEL));
 
        cpumask_setall(top_cpuset.cpus_allowed);
        nodes_setall(top_cpuset.mems_allowed);
@@ -2139,8 +2137,7 @@ int __init cpuset_init(void)
        if (err < 0)
                return err;
 
-       if (!alloc_cpumask_var(&cpus_attach, GFP_KERNEL))
-               BUG();
+       BUG_ON(!alloc_cpumask_var(&cpus_attach, GFP_KERNEL));
 
        return 0;
 }