From nobody Mon Feb 9 05:00:20 2026 Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BE20A21255A; Tue, 27 Jan 2026 03:33:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769484830; cv=none; b=TmCSJ46LrmG9iFBj/OltY3DDNGewCm9K7J3nMIkOyLkq0b6tNyf7bWy1drtuW+h6yaNGULSYuR829GBYyqOWtGncTXzAtG7cIiffp6f1jJnYa624irX3U537FA6QTavUmTcWkjles4rJ3NXbZmMn5UFrQ99uf7UXZ41FJqpZSko= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769484830; c=relaxed/simple; bh=NDnJkHY8nPosiplyCAc1GWq5X3eskreq/zs8gR/KiQE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=AVFblFdMj+8sZvIppKVUroay7nAfqqoiQ3FloPje3kxmBd8Sa0N3DbI8xYi41zaCuimpbdbFFrMBOKEP3A8ZgpUfgPvLNGfAbthz6Ajh4vExJjNF5Hf94E+WBt5UV+Qmf3g6Fy+2pf+VbOnKUTVDJ/v2RVx4jGxU0tlGcOdubLg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from localhost (unknown [124.16.138.129]) by APP-03 (Coremail) with SMTP id rQCowAAXOuELMnhpS47oBg--.60736S2; Tue, 27 Jan 2026 11:33:31 +0800 (CST) From: Chen Ni To: fengzheng923@gmail.com, lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, wens@kernel.org, jernej.skrabec@gmail.com, samuel@sholland.org Cc: linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Chen Ni Subject: [PATCH] ASoC: sunxi: sun50i-dmic: Add missing check for devm_regmap_init_mmio Date: Tue, 27 Jan 2026 11:32:50 +0800 Message-Id: <20260127033250.2044608-1-nichen@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: rQCowAAXOuELMnhpS47oBg--.60736S2 X-Coremail-Antispam: 1UD129KBjvdXoWrZrWkJrWfCw1ruw18AF15CFg_yoWfJrc_G3 y7u3s5WFyUKrWIka4DJr4jyr4rWF10kFyIgr4UKFZxJ34DGa15Z3yxK34ru3ykW3y8CFW0 vw12vrZxJ3ya9jkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbf8FF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwVC2z280aVCY1x0267AKxVWxJr 0_GcWle2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Wrv_ZF1lYx0Ex4A2jsIE14v26rkl6F8dMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1lc7CjxVAaw2AFwI0_Jw0_GFylc2xSY4AK67AK6r48MxAIw28IcxkI7VAKI4 8JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xv wVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjx v20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20E Y4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267 AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7sR_EoGDUUUUU== X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ Content-Type: text/plain; charset="utf-8" Add check for the return value of devm_regmap_init_mmio() and return the error if it fails in order to catch the error. Signed-off-by: Chen Ni --- sound/soc/sunxi/sun50i-dmic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/sunxi/sun50i-dmic.c b/sound/soc/sunxi/sun50i-dmic.c index bab1e29c9988..69d2478ffc95 100644 --- a/sound/soc/sunxi/sun50i-dmic.c +++ b/sound/soc/sunxi/sun50i-dmic.c @@ -358,6 +358,9 @@ static int sun50i_dmic_probe(struct platform_device *pd= ev) =20 host->regmap =3D devm_regmap_init_mmio(&pdev->dev, base, &sun50i_dmic_regmap_config); + if (IS_ERR(host->regmap)) + return dev_err_probe(&pdev->dev, PTR_ERR(host->regmap), + "failed to initialise regmap\n"); =20 /* Clocks */ host->bus_clk =3D devm_clk_get(&pdev->dev, "bus"); --=20 2.25.1