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| author | Manfred Spraul <manfred@colorfullife.com> | 2018-08-21 22:02:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 10:52:52 -0700 |
| commit | 2a9d6481004215da8e93edb588cf448f2af80303 (patch) | |
| tree | 8ce2a97df46ba44963cbc517f58707fc1ee7eb4d /ipc | |
| parent | 27c331a174614208d0b539019583990967ad9479 (diff) | |
| download | lwn-2a9d6481004215da8e93edb588cf448f2af80303.tar.gz lwn-2a9d6481004215da8e93edb588cf448f2af80303.zip | |
ipc/util.c: update return value of ipc_getref from int to bool
ipc_getref has still a return value of type "int", matching the atomic_t
interface of atomic_inc_not_zero()/atomic_add_unless().
ipc_getref now uses refcount_inc_not_zero, which has a return value of
type "bool".
Therefore, update the return code to avoid implicit conversions.
Link: http://lkml.kernel.org/r/20180712185241.4017-13-manfred@colorfullife.com
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Davidlohr Bueso <dbueso@suse.de>
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>
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/util.c | 2 | ||||
| -rw-r--r-- | ipc/util.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/ipc/util.c b/ipc/util.c index 6f30ba80ca15..0af05752969f 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -462,7 +462,7 @@ void ipc_set_key_private(struct ipc_ids *ids, struct kern_ipc_perm *ipcp) ipcp->key = IPC_PRIVATE; } -int ipc_rcu_getref(struct kern_ipc_perm *ptr) +bool ipc_rcu_getref(struct kern_ipc_perm *ptr) { return refcount_inc_not_zero(&ptr->refcount); } diff --git a/ipc/util.h b/ipc/util.h index e74564fe3375..0a159f69b3bb 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -138,7 +138,7 @@ static inline int ipc_get_maxidx(struct ipc_ids *ids) * refcount is initialized by ipc_addid(), before that point call_rcu() * must be used. */ -int ipc_rcu_getref(struct kern_ipc_perm *ptr); +bool ipc_rcu_getref(struct kern_ipc_perm *ptr); void ipc_rcu_putref(struct kern_ipc_perm *ptr, void (*func)(struct rcu_head *head)); |