staging: lustre: ldlm: free resource when ldlm_lock_create() fails.

[ Upstream commit d8caf662b4 ]

ldlm_lock_create() gets a resource, but don't put it on
all failure paths. It should.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
NeilBrown 2018-03-29 15:26:48 +11:00 committed by Greg Kroah-Hartman
parent e906355a7f
commit 41e1f1feee

View file

@ -1571,8 +1571,10 @@ struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
return ERR_CAST(res);
lock = ldlm_lock_new(res);
if (!lock)
if (!lock) {
ldlm_resource_putref(res);
return ERR_PTR(-ENOMEM);
}
lock->l_req_mode = mode;
lock->l_ast_data = data;
@ -1615,6 +1617,8 @@ struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
return ERR_PTR(rc);
}
/**
* Enqueue (request) a lock.
* On the client this is called from ldlm_cli_enqueue_fini