sched: kfree(NULL) is valid



kfree(NULL) is valid.

pointed out by checkpatch.pl.

the fix shrinks the code a bit:

   text    data     bss     dec     hex filename
  40024    3842     100   43966    abbe sched.o.before
  40002    3842     100   43944    aba8 sched.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 8927f494

kernel/sched.c

+5 −8

Original line number	Diff line number	Diff line
		@@ -6784,16 +6784,13 @@ struct task_grp *sched_create_group(void)

		err:
		for_each_possible_cpu(i) {
		if (tg->cfs_rq && tg->cfs_rq[i])
		if (tg->cfs_rq)
		kfree(tg->cfs_rq[i]);
		if (tg->se && tg->se[i])
		if (tg->se)
		kfree(tg->se[i]);
		}
		if (tg->cfs_rq)
		kfree(tg->cfs_rq);
		if (tg->se)
		kfree(tg->se);
		if (tg)
		kfree(tg);

		return ERR_PTR(-ENOMEM);