From patchwork Mon Jun 5 01:48:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiasheng Jiang X-Patchwork-Id: 13266848 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 0347BC7EE29 for ; Mon, 5 Jun 2023 01:49:11 +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=kDLq4f4JOMqIPij8UbKInnB4kHdWnUWNg6qmmkrV40w=; b=Vy96gA2FS4ypod 8XlCUz8jXQVk2Xeu0LyMhzhFwOPTQOe8jWkvETqxbSBTFr3Rg0dgeQXhrmQG210nQbRIM43NmZZP9 2883uJ2ZSfd8NtT2fsFeal+UyGqGcKU5ywpovScS81Nab/4bmBGURa9aPqUFkJ9gOOoyN7moIIeq4 XWf8HJt36RP1WsKZ9de6eFKFJAg2Ax0DqlYHbzPFzOe9IS+bfW2TwrJDUuyDWT9AVW5ocz2tQyHS1 WqHfUwf4z1fbxODrm3DyTY2p85t1qfLRJOszsuNqs8mK3pdj6c1Wl/GqdtldZFWtQgEQG1ImpEH4O a277lD5erSfP62FhFgXg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q5zLD-00Dfed-0n; Mon, 05 Jun 2023 01:49:03 +0000 Received: from smtp80.cstnet.cn ([159.226.251.80] helo=cstnet.cn) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q5zL9-00Dfct-1R for linux-riscv@lists.infradead.org; Mon, 05 Jun 2023 01:49:01 +0000 Received: from ed3e173716be.home.arpa (unknown [124.16.138.125]) by APP-01 (Coremail) with SMTP id qwCowADHzg4DP31k4vaECw--.18700S2; Mon, 05 Jun 2023 09:48:52 +0800 (CST) From: Jiasheng Jiang To: andy.shevchenko@gmail.com Cc: oe-kbuild-all@lists.linux.dev, linus.walleij@linaro.org, brgl@bgdev.pl, palmer@dabbelt.com, paul.walmsley@sifive.com, linux-gpio@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Jiasheng Jiang Subject: [PATCH v3] gpio: sifive: Add missing check for platform_get_irq Date: Mon, 5 Jun 2023 09:48:50 +0800 Message-Id: <20230605014850.9591-1-jiasheng@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: qwCowADHzg4DP31k4vaECw--.18700S2 X-Coremail-Antispam: 1UD129KBjvdXoW7JFykGFW5XryDtr4fJrW3trb_yoWDCFg_Cw 1kZFyUWr409F98WF12yrWSyr92vrWkur1kursayFy3tr98Z34UZry7ZFs5AF1DWr1UKFyU Ca95u3y3Aa13GjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb38FF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6xkF7I0E14v26r 4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2Wl Yx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbV WUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7Cj xVA2Y2ka0xkIwI1lc2xSY4AK67AK6w4l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7 v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF 1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIx AIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI 42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWI evJa73UjIFyTuYvjfUOMKZDUUUU X-Originating-IP: [124.16.138.125] X-CM-SenderInfo: pmld2xxhqjqxpvfd2hldfou0/ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230604_184859_850455_009C4DB5 X-CRM114-Status: GOOD ( 10.06 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add the missing check for platform_get_irq() and return error code if it fails. Fixes: f52d6d8b43e5 ("gpio: sifive: To get gpio irq offset from device tree data") Signed-off-by: Jiasheng Jiang Reviewed-by: Andy Shevchenko --- Changelog: v2 -> v3: 1. Check before assigning values. v1 -> v2: 1. Return "girq->parents[0]" instead of "-ENODEV". --- drivers/gpio/gpio-sifive.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-sifive.c b/drivers/gpio/gpio-sifive.c index 98939cd4a71e..745e5f67254e 100644 --- a/drivers/gpio/gpio-sifive.c +++ b/drivers/gpio/gpio-sifive.c @@ -221,8 +221,12 @@ static int sifive_gpio_probe(struct platform_device *pdev) return -ENODEV; } - for (i = 0; i < ngpio; i++) - chip->irq_number[i] = platform_get_irq(pdev, i); + for (i = 0; i < ngpio; i++) { + ret = platform_get_irq(pdev, i); + if (ret < 0) + return ret; + chip->irq_number[i] = ret; + } ret = bgpio_init(&chip->gc, dev, 4, chip->base + SIFIVE_GPIO_INPUT_VAL,