From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7823C433EF for ; Mon, 11 Apr 2022 09:10:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344192AbiDKJNJ (ORCPT ); Mon, 11 Apr 2022 05:13:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48890 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344205AbiDKJM7 (ORCPT ); Mon, 11 Apr 2022 05:12:59 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C689B19014 for ; Mon, 11 Apr 2022 02:10:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1649668247; x=1681204247; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AkkbZWjZRlH9312vjiduNujt5vMVxf/XLruKiXMySs0=; b=e0mLrdJ2gjKNFgIaAp1W6Rj6NISj/Sv70zJPjcSosC8db/AQp1cMCXut e2Ei2geyqm7VoO7lqKaBooTzwiHRLHeBfzKAJtfdpy48AX3kKl7IpWSkQ ffLfa/J2uPbxLXfOtx9RqFGwZhY9zAxM7P1yjRvHEGhcKe0I93pw1BqEo H+EjSSI7xcfzxkX3Mq+e9B+L4m5DCw8bh/1qN0f6Ev9QY67rrcbAWCG+t BZDMw3oKcYpvksasKPo2ROUEKrLQoCdG+3IE4Hu2Y0IHqCGQGO0DhDw+n 4X5NNNKqsaitLzFsS5iRmfTrRTz782/1WmSTq6rTxj7lFaX34gnVFdUiV A==; X-IronPort-AV: E=Sophos;i="5.90,251,1643698800"; d="scan'208";a="159624238" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa5.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 11 Apr 2022 02:10:47 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 11 Apr 2022 02:10:46 -0700 Received: from ROB-ULT-M18064N.mchp-main.com (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 11 Apr 2022 02:10:43 -0700 From: Tudor Ambarus To: , CC: , , , , , , Tudor Ambarus Subject: [PATCH v3 3/9] mtd: spi-nor: core: Use auto-detection only once Date: Mon, 11 Apr 2022 12:10:27 +0300 Message-ID: <20220411091033.98754-4-tudor.ambarus@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220411091033.98754-1-tudor.ambarus@microchip.com> References: <20220411091033.98754-1-tudor.ambarus@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In case spi_nor_match_name() returned NULL, the auto detection was issued twice. There's no reason to try to detect the same chip twice, do the auto detection only once. Signed-off-by: Tudor Ambarus --- v3: - caller of spi_nor_get_flash_info now handles NULL and translates it to ENOENT. drivers/mtd/spi-nor/core.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index b9cc8bbf1f62..b55d922d46dd 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -2896,13 +2896,14 @@ static const struct flash_info *spi_nor_get_flash_info(struct spi_nor *nor, { const struct flash_info *info = NULL; - if (name) + if (name) { info = spi_nor_match_name(nor, name); + if (IS_ERR(info)) + return info; + } /* Try to auto-detect if chip name wasn't specified or not found */ if (!info) - info = spi_nor_read_id(nor); - if (IS_ERR_OR_NULL(info)) - return ERR_PTR(-ENOENT); + return spi_nor_read_id(nor); /* * If caller has specified name of flash model that can normally be @@ -2994,7 +2995,9 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, return -ENOMEM; info = spi_nor_get_flash_info(nor, name); - if (IS_ERR(info)) + if (!info) + return -ENOENT; + else if (IS_ERR(info)) return PTR_ERR(info); nor->info = info; -- 2.25.1