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Thu, 24 Sep 2020 13:41:48 +0000 (UTC) Delivered-To: dm-devel@redhat.com Received: from mimecast-mx02.redhat.com (mimecast06.extmail.prod.ext.rdu2.redhat.com [10.11.55.22]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 75BD311410F for ; Thu, 24 Sep 2020 13:41:45 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4D7ED186E136 for ; Thu, 24 Sep 2020 13:41:45 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-230-25BM-IfhNRuwi4JQI-it8A-1; Thu, 24 Sep 2020 09:41:42 -0400 X-MC-Unique: 25BM-IfhNRuwi4JQI-it8A-1 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 18847B12B; Thu, 24 Sep 2020 13:41:40 +0000 (UTC) From: mwilck@suse.com To: Christophe Varoqui , Benjamin Marzinski Date: Thu, 24 Sep 2020 15:40:43 +0200 Message-Id: <20200924134054.14632-13-mwilck@suse.com> In-Reply-To: <20200924134054.14632-1-mwilck@suse.com> References: <20200924134054.14632-1-mwilck@suse.com> MIME-Version: 1.0 X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 08ODfmke026887 X-loop: dm-devel@redhat.com Cc: lixiaokeng@huawei.com, dm-devel@redhat.com, Martin Wilck Subject: [dm-devel] [PATCH 12/23] multipathd: unwatch_all_dmevents: check if waiter is initialized X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com From: Martin Wilck Signed-off-by: Martin Wilck --- multipathd/dmevents.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/multipathd/dmevents.c b/multipathd/dmevents.c index b561cbf..f52f597 100644 --- a/multipathd/dmevents.c +++ b/multipathd/dmevents.c @@ -257,6 +257,8 @@ void unwatch_all_dmevents(void) struct dev_event *dev_evt; int i; + if (!waiter) + return; pthread_mutex_lock(&waiter->events_lock); vector_foreach_slot(waiter->events, dev_evt, i) free(dev_evt);