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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 F116BCA9EC7 for ; Tue, 5 Nov 2019 06:45:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C27572084D for ; Tue, 5 Nov 2019 06:45:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ZPWuvUj8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387579AbfKEGpG (ORCPT ); Tue, 5 Nov 2019 01:45:06 -0500 Received: from mail-pf1-f202.google.com ([209.85.210.202]:57288 "EHLO mail-pf1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387517AbfKEGpF (ORCPT ); Tue, 5 Nov 2019 01:45:05 -0500 Received: by mail-pf1-f202.google.com with SMTP id v11so15438847pfm.23 for ; Mon, 04 Nov 2019 22:45:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=5TtiPZ8JG3IZB9IHfZXJzJVA9bfv9F4xuxgcwBO6hmE=; b=ZPWuvUj8a8q4uvpmzT22mQ2WR3WURPKcIka9HvFedRwDHQ6oPEfbSPy6PGxIeLvgo7 vvZObZOobmyPhjgae6FPfXxT6DT5vClY/Qx1jWMpqThB2ysxdJy8/MBVFnxfdGcPqh4U JTRw8tqJeWcQ2feNXCqOQJc8JF7O4CJsxk30Ds0hq43s7+rDGHOWI/+uzBz/GRgSOqro EQqij06eWMv8TmLRWdyWAIyjIAH/qA5yhhcP3F4RTq9eyZU7XMHlnCa0qYD+2ATKoOiV X+R/VMxvu3Lgj9zdIxSiwlllYFxcmEPc2gxduqYBioPipNZ5hXKiy9tOkf52u0RQjhf9 Vegg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=5TtiPZ8JG3IZB9IHfZXJzJVA9bfv9F4xuxgcwBO6hmE=; b=D1oKANcavodMoqIt7RozO61LjWWIfmwxyr55oe5EuafFK8RddwhH0Rd2hF/Nqs0emd O1zf+FYx7uanX5X0+Xkr0lJSBLmLXfD2oWMtDSNLC0srqz1q17gvFEH7v1pZXt010lV3 dA/cFpY/cS0kk55WZwFeZHSQQkRf3qcLdoyBR8J1J/uzmlOhHE4gq51lWidehwgBnM8V uG8eItdVHKQmh4VO14iPvX+sh38QqbVSKbrxsb8ziaxqSL+rkMWHWkH7LLQsKtGwDsM5 Hf8c3MwriM7FGY0jyEMFOkVpbGfxTC29Ln1WONSX3+JuSbJ9CMgWgDgMaoIJGAGrimb5 O0dA== X-Gm-Message-State: APjAAAWzlSIWd40GQ1AwocMHZpLu4MIVlRzV+sspzsNA2zWBz/bw6MTe QOZfhv7tD3qH8ZUHeZZd+1Xu4hZ0l1Xjf6w= X-Google-Smtp-Source: APXvYqwyJ5qlDC7E2bSBigwa1PnPbCXw2M+VjtdsoAnhMgSgk+aTV3CEUrBXZIL2rOI0mC0p+IIFQU/0XtNicqo= X-Received: by 2002:a63:4104:: with SMTP id o4mr34057739pga.169.1572936303079; Mon, 04 Nov 2019 22:45:03 -0800 (PST) Date: Mon, 4 Nov 2019 22:44:53 -0800 In-Reply-To: <20191105064456.36906-1-saravanak@google.com> Message-Id: <20191105064456.36906-2-saravanak@google.com> Mime-Version: 1.0 References: <20191105064456.36906-1-saravanak@google.com> X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog Subject: [PATCH v1 1/3] of: property: Minor style clean up of of_link_to_phandle() From: Saravana Kannan To: Greg Kroah-Hartman , Rob Herring , Frank Rowand Cc: Saravana Kannan , kernel-team@android.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding a debug log instead of silently ignoring a phandle for an early device. Also, return the right error code instead of 0 even though the actual execution flow won't change. Signed-off-by: Saravana Kannan --- drivers/of/property.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index e225ab17f598..fbc201330ba0 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1051,8 +1051,14 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np, sup_dev = get_dev_from_fwnode(&sup_np->fwnode); is_populated = of_node_check_flag(sup_np, OF_POPULATED); of_node_put(sup_np); - if (!sup_dev) - return is_populated ? 0 : -EAGAIN; + if (!sup_dev && is_populated) { + /* Early device without struct device. */ + dev_dbg(dev, "Not linking to %pOFP - No struct device\n", + sup_np); + return -ENODEV; + } else if (!sup_dev) { + return -EAGAIN; + } if (!device_link_add(dev, sup_dev, dl_flags)) ret = -EAGAIN; put_device(sup_dev); -- 2.24.0.rc1.363.gb1bccd3e3d-goog