From patchwork Fri Dec 3 06:54:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiasheng Jiang X-Patchwork-Id: 1563131 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4J53VF5BtBz9t1r for ; Fri, 3 Dec 2021 17:55:01 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378708AbhLCG6X (ORCPT ); Fri, 3 Dec 2021 01:58:23 -0500 Received: from smtp23.cstnet.cn ([159.226.251.23]:48248 "EHLO cstnet.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1348938AbhLCG6W (ORCPT ); Fri, 3 Dec 2021 01:58:22 -0500 Received: from localhost.localdomain (unknown [124.16.138.128]) by APP-03 (Coremail) with SMTP id rQCowAAnQJIjv6lhvfj9AA--.41348S2; Fri, 03 Dec 2021 14:54:31 +0800 (CST) From: Jiasheng Jiang To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, vz@mleia.com Cc: linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jiasheng Jiang Subject: [PATCH] gpio: lpc32xx: Handle devm_gpiochip_add_data error codes Date: Fri, 3 Dec 2021 14:54:25 +0800 Message-Id: <20211203065425.1536348-1-jiasheng@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: rQCowAAnQJIjv6lhvfj9AA--.41348S2 X-Coremail-Antispam: 1UD129KBjvdXoWrtr4kAF43WFyruFW3ZrW7twb_yoWDGFb_Kr sYqrsFqryIyF1jqrn7ArW2vrySkrs7uFn5ZanYgwnxAry8uw4kCFW3ua15GrZ7ZrW8Gr15 C3yDZr15JrsxKjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb48FF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6xkF7I0E14v26r xl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj 6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr 0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7MxkIecxEwVAFwVW8 AwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r 1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij 64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr 0_Gr1lIxAIcVCF04k26cxKx2IYs7xG6rW3Jr0E3s1lIxAIcVC2z280aVAFwI0_Jr0_Gr1l IxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUjHUDJUUUU U== X-Originating-IP: [124.16.138.128] X-CM-SenderInfo: pmld2xxhqjqxpvfd2hldfou0/ Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The return value of devm_gpiochip_add_data() is not always 0. To catch the exception in case of the failure. Fixes: 69c0a0a52cde ("gpio: lpc32xx: Use devm_gpiochip_add_data() for gpio registration") Signed-off-by: Jiasheng Jiang --- drivers/gpio/gpio-lpc32xx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c index 4e626c4235c2..4bda84b38cf5 100644 --- a/drivers/gpio/gpio-lpc32xx.c +++ b/drivers/gpio/gpio-lpc32xx.c @@ -518,8 +518,10 @@ static int lpc32xx_gpio_probe(struct platform_device *pdev) lpc32xx_gpiochip[i].chip.of_node = pdev->dev.of_node; lpc32xx_gpiochip[i].reg_base = reg_base; } - devm_gpiochip_add_data(&pdev->dev, &lpc32xx_gpiochip[i].chip, + int err = devm_gpiochip_add_data(&pdev->dev, &lpc32xx_gpiochip[i].chip, &lpc32xx_gpiochip[i]); + if (err) + return err; } return 0;