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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2AF97CE7AB0 for ; Mon, 9 Sep 2024 07:29:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=XQiRgRX78Xl7T4232KxUzoCtzx5/qZSriQOG+/me1Z8=; b=4xPT5XgojbUpI7 rF+7ObXZV81XNN2cniNAr9BYo5pjtZ7dzVS3ke+zG1MeRl6D39tUzQsAytPlnNYVJrY2TvhEVkzI9 BuwmACD1aka391LsAAP2qEPU1IOEf6qpDjzQ6ZI3/RX6AuuPRKMu4fD7r7ptLUi3u7P3KN2LLHP0k 5BK6yE2KSsC0OcRVGs+HnjLHeTslx/pUgDcrv+tGQO4ONN3HKTFujrdxJwB/BczQ4UhR4TG5tuMFt Oo1pD8Mc0WvQg/gayM2Gte7U5lJJyzMfoTEayCuTrW2M6Y0Q28ekBeCpDcDbrO5RVylCnz0fuT0th imqgis1uvEBB3uiDt83A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1snYph-00000000pBB-2WUU; Mon, 09 Sep 2024 07:29:09 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1snYpd-00000000p8N-3te5 for linux-mtd@lists.infradead.org; Mon, 09 Sep 2024 07:29:07 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 16E96A4019E; Mon, 9 Sep 2024 07:28:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2E847C4CEC5; Mon, 9 Sep 2024 07:29:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725866944; bh=gLORX5kNyb8Wx4wp2/yGi9iofYmB9JEz1cojrS4yw90=; h=From:To:Cc:Subject:Date:From; b=d3e1ucj4AhArJNEXjeAmQ/6yyGYVNiPYMe2PMGZxPVp54qEk3LKKG+x1+O6GbuBlE XynLX1OZyD8Hz/D6I1r2WW/UyQh8h5ot9gd/9OYAl2cxic8dmG9ajmELNNAHGFNDSf dtK+q6isWXeOuf/MTYzPpRt2S1Fy2OGNaa1DRYnfXh+l+yt6QxtDP0mzIEUWMfnukj GJroeindJ68Sa7Rt/XFvGq7FefENsEXgoYtDWTJ5anaf6b36wHl0nw4xiNPiJF/6J9 IbVCZSdI3QB/OiaWJgpHS87kdqtivrgb/x7jclf1QoqAfstPcg3XcHyRyu7cmJbixj O2TBEztnPg6yg== From: Michael Walle To: Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra Cc: Takahiro Kuwano , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Jon Hunter Subject: [PATCH] mtd: spi-nor: fix flash probing Date: Mon, 9 Sep 2024 09:28:54 +0200 Message-Id: <20240909072854.812206-1-mwalle@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240909_002906_049425_8F4727AF X-CRM114-Status: GOOD ( 12.52 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Fix flash probing by name. Flash entries without a name are allowed since commit 15eb8303bb42 ("mtd: spi-nor: mark the flash name as obsolete"). But it was just until recently that a flash entry without a name was actually introduced. This triggers a bug in the legacy probe by name path. Skip entries without a name to fix it. Fixes: 2095e7da8049 ("mtd: spi-nor: spansion: Add support for S28HS256T") Reported-by: Jon Hunter Closes: https://lore.kernel.org/r/66c8ebb0-1324-4ad9-9926-8d4eb7e1e63a@nvidia.com/ Tested-by: Jon Hunter Signed-off-by: Michael Walle --- drivers/mtd/spi-nor/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index d8e551fd2e2a..101ee5b0ddeb 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -3281,7 +3281,8 @@ static const struct flash_info *spi_nor_match_name(struct spi_nor *nor, for (i = 0; i < ARRAY_SIZE(manufacturers); i++) { for (j = 0; j < manufacturers[i]->nparts; j++) { - if (!strcmp(name, manufacturers[i]->parts[j].name)) { + if (manufacturers[i]->parts[j].name && + !strcmp(name, manufacturers[i]->parts[j].name)) { nor->manufacturer = manufacturers[i]; return &manufacturers[i]->parts[j]; } -- 2.39.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/