From patchwork Sat Jan 12 01:30:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Verma, Vishal L" X-Patchwork-Id: 10760839 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 309BD17FB for ; Sat, 12 Jan 2019 01:31:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2169329F0B for ; Sat, 12 Jan 2019 01:31:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 159C729F15; Sat, 12 Jan 2019 01:31:11 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 751B829F12 for ; Sat, 12 Jan 2019 01:31:10 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 79F1A211B6C32; Fri, 11 Jan 2019 17:31:07 -0800 (PST) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=192.55.52.88; helo=mga01.intel.com; envelope-from=vishal.l.verma@intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 8F5342118FF2F for ; Fri, 11 Jan 2019 17:31:06 -0800 (PST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Jan 2019 17:31:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,467,1539673200"; d="scan'208";a="117481097" Received: from vverma7-desk1.lm.intel.com ([10.232.112.170]) by orsmga003.jf.intel.com with ESMTP; 11 Jan 2019 17:31:01 -0800 From: Vishal Verma To: Subject: [ndctl PATCH v2 4/4] ndctl: clean up usage of ndctl_cmd_submit Date: Fri, 11 Jan 2019 18:30:35 -0700 Message-Id: <20190112013035.32087-5-vishal.l.verma@intel.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190112013035.32087-1-vishal.l.verma@intel.com> References: <20190112013035.32087-1-vishal.l.verma@intel.com> X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ami Pathak MIME-Version: 1.0 Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP It is possible for ndctl_cmd_submit to return a positive number, indicating a buffer underrun. It is only truly an error if it returns a negative number. Several places in the library, the ndctl utility, and in test/ were simply checking for an error with "if (rc)". Fix these to only error out for negative returns. Cc: Dan Williams Signed-off-by: Vishal Verma Reviewed-by: Dan Williams --- ndctl/lib/dimm.c | 6 +++--- ndctl/lib/inject.c | 8 ++++---- ndctl/lib/nfit.c | 2 +- ndctl/util/json-firmware.c | 2 +- test/daxdev-errors.c | 8 ++++---- test/libndctl.c | 18 +++++++++--------- test/smart-notify.c | 8 ++++---- 7 files changed, 26 insertions(+), 26 deletions(-) diff --git a/ndctl/lib/dimm.c b/ndctl/lib/dimm.c index 79e2ca0..12dc74a 100644 --- a/ndctl/lib/dimm.c +++ b/ndctl/lib/dimm.c @@ -332,7 +332,7 @@ static int nvdimm_set_config_data(struct nvdimm_data *ndd, size_t offset, goto out; rc = ndctl_cmd_submit(cmd_write); - if (rc || ndctl_cmd_get_firmware_status(cmd_write)) + if ((rc < 0) || ndctl_cmd_get_firmware_status(cmd_write)) rc = -ENXIO; out: ndctl_cmd_unref(cmd_write); @@ -488,14 +488,14 @@ NDCTL_EXPORT struct ndctl_cmd *ndctl_dimm_read_labels(struct ndctl_dimm *dimm) if (!cmd_size) return NULL; rc = ndctl_cmd_submit(cmd_size); - if (rc || ndctl_cmd_get_firmware_status(cmd_size)) + if ((rc < 0) || ndctl_cmd_get_firmware_status(cmd_size)) goto out_size; cmd_read = ndctl_dimm_cmd_new_cfg_read(cmd_size); if (!cmd_read) goto out_size; rc = ndctl_cmd_submit(cmd_read); - if (rc || ndctl_cmd_get_firmware_status(cmd_read)) + if ((rc < 0) || ndctl_cmd_get_firmware_status(cmd_read)) goto out_read; ndctl_cmd_unref(cmd_size); diff --git a/ndctl/lib/inject.c b/ndctl/lib/inject.c index 2b0702e..c35d0f3 100644 --- a/ndctl/lib/inject.c +++ b/ndctl/lib/inject.c @@ -156,7 +156,7 @@ static int ndctl_namespace_inject_one_error(struct ndctl_namespace *ndns, (1 << ND_ARS_ERR_INJ_OPT_NOTIFY); rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { dbg(ctx, "Error submitting command: %d\n", rc); goto out; } @@ -234,7 +234,7 @@ static int ndctl_namespace_uninject_one_error(struct ndctl_namespace *ndns, err_inj_clr->err_inj_clr_spa_range_length = length; rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { dbg(ctx, "Error submitting command: %d\n", rc); goto out; } @@ -443,7 +443,7 @@ NDCTL_EXPORT int ndctl_namespace_injection_status(struct ndctl_namespace *ndns) cmd = ndctl_bus_cmd_new_ars_cap(bus, ns_offset, ns_size); rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { dbg(ctx, "Error submitting ars_cap: %d\n", rc); goto out; } @@ -464,7 +464,7 @@ NDCTL_EXPORT int ndctl_namespace_injection_status(struct ndctl_namespace *ndns) (struct nd_cmd_ars_err_inj_stat *)&pkg->nd_payload[0]; rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { dbg(ctx, "Error submitting command: %d\n", rc); goto out; } diff --git a/ndctl/lib/nfit.c b/ndctl/lib/nfit.c index 2ae3f07..b10edb1 100644 --- a/ndctl/lib/nfit.c +++ b/ndctl/lib/nfit.c @@ -133,7 +133,7 @@ int ndctl_bus_nfit_translate_spa(struct ndctl_bus *bus, translate_spa->spa = address; rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { ndctl_cmd_unref(cmd); return rc; } diff --git a/ndctl/util/json-firmware.c b/ndctl/util/json-firmware.c index 118424f..f7150d8 100644 --- a/ndctl/util/json-firmware.c +++ b/ndctl/util/json-firmware.c @@ -25,7 +25,7 @@ struct json_object *util_dimm_firmware_to_json(struct ndctl_dimm *dimm, goto err; rc = ndctl_cmd_submit(cmd); - if (rc || ndctl_cmd_fw_xlat_firmware_status(cmd) != FW_SUCCESS) { + if ((rc < 0) || ndctl_cmd_fw_xlat_firmware_status(cmd) != FW_SUCCESS) { jobj = util_json_object_hex(-1, flags); if (jobj) json_object_object_add(jfirmware, "current_version", diff --git a/test/daxdev-errors.c b/test/daxdev-errors.c index 94fbebe..29de16b 100644 --- a/test/daxdev-errors.c +++ b/test/daxdev-errors.c @@ -75,7 +75,7 @@ static int check_ars_cap(struct ndctl_bus *bus, uint64_t start, } rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: bus: %s failed to submit cmd: %d\n", __func__, ndctl_bus_get_provider(bus), rc); ndctl_cmd_unref(cmd); @@ -115,7 +115,7 @@ static int check_ars_start(struct ndctl_bus *bus, struct check_cmd *check) } rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: bus: %s failed to submit cmd: %d\n", __func__, ndctl_bus_get_provider(bus), rc); ndctl_cmd_unref(cmd); @@ -149,7 +149,7 @@ static int check_ars_status(struct ndctl_bus *bus, struct check_cmd *check) } rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: bus: %s failed to submit cmd: %d\n", __func__, ndctl_bus_get_provider(bus), rc); ndctl_cmd_unref(cmd); @@ -210,7 +210,7 @@ static int check_clear_error(struct ndctl_bus *bus, struct check_cmd *check) } rc = ndctl_cmd_submit(clear_err); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: bus: %s failed to submit cmd: %d\n", __func__, ndctl_bus_get_provider(bus), rc); ndctl_cmd_unref(clear_err); diff --git a/test/libndctl.c b/test/libndctl.c index 50365f0..59f68d8 100644 --- a/test/libndctl.c +++ b/test/libndctl.c @@ -2057,7 +2057,7 @@ static int check_get_config_size(struct ndctl_bus *bus, struct ndctl_dimm *dimm, } rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit cmd: %d\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2091,7 +2091,7 @@ static int check_get_config_data(struct ndctl_bus *bus, struct ndctl_dimm *dimm, } rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit cmd: %zd\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2127,7 +2127,7 @@ static int check_set_config_data(struct ndctl_bus *bus, struct ndctl_dimm *dimm, memset(buf, 0, sizeof(buf)); ndctl_cmd_cfg_write_set_data(cmd, buf, sizeof(buf), 0); rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit cmd: %zd\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2135,7 +2135,7 @@ static int check_set_config_data(struct ndctl_bus *bus, struct ndctl_dimm *dimm, } rc = ndctl_cmd_submit(cmd_read); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit read1: %zd\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2152,7 +2152,7 @@ static int check_set_config_data(struct ndctl_bus *bus, struct ndctl_dimm *dimm, sprintf(buf, "dimm-%#x", ndctl_dimm_get_handle(dimm)); ndctl_cmd_cfg_write_set_data(cmd, buf, sizeof(buf), 0); rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit cmd: %zd\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2160,7 +2160,7 @@ static int check_set_config_data(struct ndctl_bus *bus, struct ndctl_dimm *dimm, } rc = ndctl_cmd_submit(cmd_read); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit read2: %zd\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2225,7 +2225,7 @@ static int check_smart(struct ndctl_bus *bus, struct ndctl_dimm *dimm, } rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit cmd: %d\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2326,7 +2326,7 @@ static int check_smart_threshold(struct ndctl_bus *bus, struct ndctl_dimm *dimm, } rc = ndctl_cmd_submit(cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit cmd: %d\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd); @@ -2375,7 +2375,7 @@ static int check_smart_threshold(struct ndctl_bus *bus, struct ndctl_dimm *dimm, } rc = ndctl_cmd_submit(cmd_set); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: dimm: %#x failed to submit cmd_set: %d\n", __func__, ndctl_dimm_get_handle(dimm), rc); ndctl_cmd_unref(cmd_set); diff --git a/test/smart-notify.c b/test/smart-notify.c index 24e9a21..e28e0f4 100644 --- a/test/smart-notify.c +++ b/test/smart-notify.c @@ -22,7 +22,7 @@ static void do_notify(struct ndctl_dimm *dimm) } rc = ndctl_cmd_submit(s_cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: smart command failed: %d %s\n", name, rc, strerror(errno)); goto out; @@ -49,7 +49,7 @@ static void do_notify(struct ndctl_dimm *dimm) } rc = ndctl_cmd_submit(st_cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: smart threshold command failed: %d %s\n", name, rc, strerror(errno)); goto out; @@ -148,7 +148,7 @@ static void do_notify(struct ndctl_dimm *dimm) ndctl_cmd_smart_threshold_set_alarm_control(sst_cmd, set_alarm); rc = ndctl_cmd_submit(sst_cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: smart set threshold command failed: %d %s\n", name, rc, strerror(errno)); goto out; @@ -166,7 +166,7 @@ static void do_notify(struct ndctl_dimm *dimm) } rc = ndctl_cmd_submit(sst_cmd); - if (rc) { + if (rc < 0) { fprintf(stderr, "%s: smart set threshold defaults failed: %d %s\n", name, rc, strerror(errno)); goto out;