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ipc: simplify ipc initialization

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Now that we know that rhashtable_init() will not fail, we can get rid of a
lot of the unnecessary cleanup paths when the call errored out.

[manfred@colorfullife.com: variable name added to util.h to resolve checkpatch warning]
Link: http://lkml.kernel.org/r/20180712185241.4017-11-manfred@colorfullife.com
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Kees Cook <keescook@chromium.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Davidlohr Bueso
2018-08-21 22:01:56 -07:00
committed by Linus Torvalds
parent dc2c8c84de
commit eae04d25a7
6 changed files with 31 additions and 55 deletions
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22
ipc/namespace.c
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@@ -55,28 +55,16 @@ static struct ipc_namespace *create_ipc_ns(struct user_namespace *user_ns,
ns->user_ns = get_user_ns(user_ns);
ns->ucounts = ucounts;
err = sem_init_ns(ns);
if (err)
goto fail_put;
err = msg_init_ns(ns);
if (err)
goto fail_destroy_sem;
err = shm_init_ns(ns);
if (err)
goto fail_destroy_msg;
err = mq_init_ns(ns);
if (err)
goto fail_destroy_shm;
goto fail_put;
sem_init_ns(ns);
msg_init_ns(ns);
shm_init_ns(ns);
return ns;
fail_destroy_shm:
shm_exit_ns(ns);
fail_destroy_msg:
msg_exit_ns(ns);
fail_destroy_sem:
sem_exit_ns(ns);
fail_put:
put_user_ns(ns->user_ns);
ns_free_inum(&ns->ns);