From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id C491CA0096 for ; Mon, 6 May 2019 16:02:15 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 9AB4A2E83; Mon, 6 May 2019 16:02:14 +0200 (CEST) Received: from mail-vs1-f68.google.com (mail-vs1-f68.google.com [209.85.217.68]) by dpdk.org (Postfix) with ESMTP id E754CA49 for ; Mon, 6 May 2019 16:02:12 +0200 (CEST) Received: by mail-vs1-f68.google.com with SMTP id v9so397604vse.5 for ; Mon, 06 May 2019 07:02:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cGe7bKuo8PrBBmZD0OSewAYFqELywCQNkLb7OE5vEK0=; b=uQA1xSjQxHG2Y787ANkNwXNqoXi+vOE7cDv8MTxajqB3UWc/UoYdqdSgT4asw2cZa+ 45/TX01CZq52Ayr/PZowwNpHPoazh6YZMHe6qnka4PXCA4CroR/gfzk9PO5uIlzRNktV N2JSSI2fAVDHQ9AcSnbgKrxqueK/tj6RunK7SwQWm1AYqzYJKc7VaPbNbVUBQQ+fKKd9 BiORdhXGe5GHRnwI6qi77f70/HeKPa/jHg4VvrSPWK7bxnBYCPn+SEKIVRWrEw2v6Sly HPSMk6yrWMX4IBuRKkqFt4GZN8SisTkFy3kpeLTIBbG3XCgU2fGQVrPdpfNkjEYbM61j mPrA== X-Gm-Message-State: APjAAAUHioJ0iAeXrE2dodKvNSf9rnQKB0a27PUPcYcleG0EhTEVrLBq g6V7nHREdG75Lnn6+929PcZc6ywWZaP9z80qMUiCgA== X-Google-Smtp-Source: APXvYqx2rpKN42CQbl9KCg0RP2MJ/rs7ZSmG1PP0YJIxqhzIkmed7Z2ACX+8o+w9YDK4VTwYNiNiv+dxQdRw0zFVc5o= X-Received: by 2002:a67:bb13:: with SMTP id m19mr1897551vsn.39.1557151331961; Mon, 06 May 2019 07:02:11 -0700 (PDT) MIME-Version: 1.0 References: <20190506131120.25140-1-aconole@redhat.com> <20190506134825.20706-1-aconole@redhat.com> In-Reply-To: <20190506134825.20706-1-aconole@redhat.com> From: David Marchand Date: Mon, 6 May 2019 16:02:00 +0200 Message-ID: To: Aaron Conole Cc: dev , Herakliusz Lipiec , dpdk stable , Anatoly Burakov Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [dpdk-dev] [PATCH v2] ipc: unlock on failure X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190506140200.YZZRUuoxpxM8XhdZy2oOV9Or4QvVOXhz-g8KJ1MLkXI@z> On Mon, May 6, 2019 at 3:48 PM Aaron Conole wrote: > Reported by Coverity. > > Coverity issue: 340076 Fixes: a2a06860b8c4 ("ipc: fix memory leak on request failure") > Cc: Herakliusz Lipiec > Cc: stable@dpdk.org > Cc: Anatoly Burakov > Signed-off-by: Aaron Conole > --- > lib/librte_eal/common/eal_common_proc.c | 34 +++++++++++++------------ > 1 file changed, 18 insertions(+), 16 deletions(-) > > diff --git a/lib/librte_eal/common/eal_common_proc.c > b/lib/librte_eal/common/eal_common_proc.c > index d23728604..1a2259fe3 100644 > --- a/lib/librte_eal/common/eal_common_proc.c > +++ b/lib/librte_eal/common/eal_common_proc.c > @@ -934,7 +934,7 @@ int __rte_experimental > rte_mp_request_sync(struct rte_mp_msg *req, struct rte_mp_reply *reply, > const struct timespec *ts) > { > - int dir_fd, ret = 0; > + int dir_fd, ret = -1; > DIR *mp_dir; > struct dirent *ent; > struct timeval now; > @@ -947,7 +947,7 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct > rte_mp_reply *reply, > reply->msgs = NULL; > > if (check_input(req) != 0) > - goto err; > + goto end; > > if (internal_config.no_shconf) { > RTE_LOG(DEBUG, EAL, "No shared files mode enabled, IPC is > disabled\n"); > @@ -957,7 +957,7 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct > rte_mp_reply *reply, > if (gettimeofday(&now, NULL) < 0) { > RTE_LOG(ERR, EAL, "Failed to get current time\n"); > rte_errno = errno; > - goto err; > + goto end; > } > > end.tv_nsec = (now.tv_usec * 1000 + ts->tv_nsec) % 1000000000; > @@ -969,9 +969,7 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct > rte_mp_reply *reply, > pthread_mutex_lock(&pending_requests.lock); > ret = mp_request_sync(eal_mp_socket_path(), req, reply, > &end); > pthread_mutex_unlock(&pending_requests.lock); > - if (ret) > - goto err; > - return ret; > + goto end; > } > > /* for primary process, broadcast request, and collect reply 1 by > 1 */ > @@ -979,7 +977,7 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct > rte_mp_reply *reply, > if (!mp_dir) { > RTE_LOG(ERR, EAL, "Unable to open directory %s\n", > mp_dir_path); > rte_errno = errno; > - goto err; > + goto end; > } > > dir_fd = dirfd(mp_dir); > @@ -987,9 +985,8 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct > rte_mp_reply *reply, > if (flock(dir_fd, LOCK_SH)) { > RTE_LOG(ERR, EAL, "Unable to lock directory %s\n", > mp_dir_path); > - closedir(mp_dir); > rte_errno = errno; > - goto err; > + goto close_end; > } > > pthread_mutex_lock(&pending_requests.lock); > @@ -1006,21 +1003,26 @@ rte_mp_request_sync(struct rte_mp_msg *req, struct > rte_mp_reply *reply, > * locks on receive > */ > if (mp_request_sync(path, req, reply, &end)) > - goto err; > + goto unlock_end; > } > + ret = 0; > + > +unlock_end: > pthread_mutex_unlock(&pending_requests.lock); > /* unlock the directory */ > flock(dir_fd, LOCK_UN); > > +close_end: > /* dir_fd automatically closed on closedir */ > closedir(mp_dir); > - return ret; > > -err: > - free(reply->msgs); > - reply->nb_received = 0; > - reply->msgs = NULL; > - return -1; > +end: > + if (ret) { > + free(reply->msgs); > + reply->nb_received = 0; > + reply->msgs = NULL; > + } > + return ret; > } > > int __rte_experimental > -- > 2.19.1 > LGTM. Reviewed-by: David Marchand -- David Marchand