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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 658D8C4CEC4 for ; Thu, 19 Sep 2019 22:13:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3AB7F21927 for ; Thu, 19 Sep 2019 22:13:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568931187; bh=g+8gN4To4ZyjBJu5S9PnPsLOBXeOcULykk1z9+yLU+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=2vU4DND+/EWLRIqem19UyZ3BtUBJsI8/GtEO0cofDNc5fEAbPKEINxQt5loPU/+UA QZWrqlGNgPXFUZfmVDNlrCjFtdCtFKbgMM4HozVIF8A5R5luCxtJt29X/815H4128M Dqym8ah3hzgJg5GSTXTS5E1BVjzGWd8Tt7Lq4F3A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2393710AbfISWNG (ORCPT ); Thu, 19 Sep 2019 18:13:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:52132 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393708AbfISWNF (ORCPT ); Thu, 19 Sep 2019 18:13:05 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 451CD21907; Thu, 19 Sep 2019 22:13:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568931184; bh=g+8gN4To4ZyjBJu5S9PnPsLOBXeOcULykk1z9+yLU+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IJ5pmPhfBZj0nnQTYtGJvNa8WPwKy0Fdhg/P40waHYRYyreX7mEFLvxUqcJTw6Awi pw+HxoQDuAUUIMJy2yt89AzEqctEplQrJjJVkOEfYHLSBBGnIQkmCI+v1hz4/2d5PF BEYOT5OcHamEeE1e3TJC+gj6Ka3oAdhWFhGLUxnQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Phil Reid , Moritz Fischer , Sasha Levin Subject: [PATCH 4.19 32/79] fpga: altera-ps-spi: Fix getting of optional confd gpio Date: Fri, 20 Sep 2019 00:03:17 +0200 Message-Id: <20190919214810.609051121@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190919214807.612593061@linuxfoundation.org> References: <20190919214807.612593061@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Phil Reid [ Upstream commit dec43da46f63eb71f519d963ba6832838e4262a3 ] Currently the driver does not handle EPROBE_DEFER for the confd gpio. Use devm_gpiod_get_optional() instead of devm_gpiod_get() and return error codes from altera_ps_probe(). Fixes: 5692fae0742d ("fpga manager: Add altera-ps-spi driver for Altera FPGAs") Signed-off-by: Phil Reid Signed-off-by: Moritz Fischer Signed-off-by: Sasha Levin --- drivers/fpga/altera-ps-spi.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c index 24b25c6260366..4925cae7dcdde 100644 --- a/drivers/fpga/altera-ps-spi.c +++ b/drivers/fpga/altera-ps-spi.c @@ -207,7 +207,7 @@ static int altera_ps_write_complete(struct fpga_manager *mgr, return -EIO; } - if (!IS_ERR(conf->confd)) { + if (conf->confd) { if (!gpiod_get_raw_value_cansleep(conf->confd)) { dev_err(&mgr->dev, "CONF_DONE is inactive!\n"); return -EIO; @@ -265,10 +265,13 @@ static int altera_ps_probe(struct spi_device *spi) return PTR_ERR(conf->status); } - conf->confd = devm_gpiod_get(&spi->dev, "confd", GPIOD_IN); + conf->confd = devm_gpiod_get_optional(&spi->dev, "confd", GPIOD_IN); if (IS_ERR(conf->confd)) { - dev_warn(&spi->dev, "Not using confd gpio: %ld\n", - PTR_ERR(conf->confd)); + dev_err(&spi->dev, "Failed to get confd gpio: %ld\n", + PTR_ERR(conf->confd)); + return PTR_ERR(conf->confd); + } else if (!conf->confd) { + dev_warn(&spi->dev, "Not using confd gpio"); } /* Register manager with unique name */ -- 2.20.1