Return-Path: linux-nfs-owner@vger.kernel.org Received: from cn.fujitsu.com ([222.73.24.84]:11952 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751603Ab3CYKCy convert rfc822-to-8bit (ORCPT ); Mon, 25 Mar 2013 06:02:54 -0400 Message-ID: <515020EC.2040005@cn.fujitsu.com> Date: Mon, 25 Mar 2013 18:03:24 +0800 From: fanchaoting MIME-Version: 1.0 To: Benny Halevy CC: "linux-nfs@vger.kernel.org" Subject: Re: [PATCH] ctl: should return NULL when dmsetup fail in find_dm_name References: <513DC8BF.5060503@cn.fujitsu.com> <51501A18.7050504@tonian.com> In-Reply-To: <51501A18.7050504@tonian.com> Content-Type: text/plain; charset=UTF-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: Benny Halevy 写道: > On 2013-03-11 14:06, fanchaoting wrote: >> when dmsetup fail in find_dm_name, it should return NULL,if don't >> do it. it will cause core dump in get_dm when do free(name). > > Thanks, but what version are you using? > This was already fixed here: > http://git.linux-nfs.org/?p=bhalevy/pnfsd-block-ctl.git;a=commitdiff;h=9082efe1dc12248e530d4200d7150a286abea922 > > Please update to the latest version > git://linux-nfs.org/~bhalevy/pnfsd-block-ctl.git > thanks for telling me . > Benny > >> Signed-off-by: fanchaoting >> >> --- >> ctl.c | 2 +- >> 1 files changed, 1 insertions(+), 1 deletions(-) >> >> diff --git a/ctl.c b/ctl.c >> index 2071b0e..0ac1c44 100644 >> --- a/ctl.c >> +++ b/ctl.c >> @@ -489,7 +489,7 @@ find_dm_name(int major, int minor) >> if (((fd = get_output("/sbin/dmsetup", argv)) == -1) || >> ((fp = fdopen(fd, "r")) == NULL)) { >> printf("%s: get_output/fdopen failed\n", __func__); >> - return; >> + return NULL; >> } >> while (fgets(buf, sizeof (buf), fp) != NULL) { >> t = __token_init(buf, '\t'); >> -- >> 1.7.1 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > >