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[23.128.96.18]) by mx.google.com with ESMTP id t15si16403176jal.92.2021.06.29.13.39.24; Tue, 29 Jun 2021 13:39:24 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-arm-msm-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=DtQ968WY; spf=pass (google.com: domain of linux-arm-msm-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-arm-msm-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235159AbhF2Ulv (ORCPT + 17 others); Tue, 29 Jun 2021 16:41:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234874AbhF2Ulu (ORCPT ); Tue, 29 Jun 2021 16:41:50 -0400 Received: from mail-lj1-x22a.google.com (mail-lj1-x22a.google.com [IPv6:2a00:1450:4864:20::22a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA3B8C061760 for ; Tue, 29 Jun 2021 13:39:22 -0700 (PDT) Received: by mail-lj1-x22a.google.com with SMTP id u25so17190963ljj.11 for ; Tue, 29 Jun 2021 13:39:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/0DsRwiemWRcUIuwueb9Y8X2gyBHPUAig9IO+tLNZso=; b=DtQ968WYHX1WBnYz8tnoM7YDFgGL1mPoNpZYeuTd/coFfF3UD6xShQ2+4GR5W8m3ci XKjN3E0SxbtkK0ra/p03svxawz81nGTNFt5MLG0HjQjhsQlRjWrJ1DwLk2uTKQ0dBF/Z KqAZKBuWNfKBMUApUwtMZzla6xmeaJNNs/zobnrrhLWPq89ZWtTmf9Wctc9iBmxtNelI dOxj+RKU9XtYYC5hWixwF43MOQRn7qeDXyQ22Crk/8lq0LGEPrIqQJR9y2AlO4OyRYVj e4JYuxrDbVN8Jd94NbHPzfvYXHQFZnnh5vF1jCqsvzrt2W+cx5Ogby9+fHNejo1ZGJvg DoNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/0DsRwiemWRcUIuwueb9Y8X2gyBHPUAig9IO+tLNZso=; b=Nf5OhQXIiQerUlU3+a0EAbqNhWDYWx0org0u/C1sr9VFOCwTEh864p5JSyXOT+oAky DwiZpe0RmSm1sXyq9N0zdWZ7OodCmTu4sxzBVkGUU0UKL7dJRFnWpgsbJIqBQ3qOgIQP 8SpOcy7c9ndfV0IrzcM6twADE0v5p1pRLVkvxeZ4qkjoozWBfjHApw0GsuK6B2rgDdUd zsBg3vPbWdz0XCqhysP+GnBK38/iXETVvcHedK7gqvOoySJi6yOSjE4EamXj9tgBsrbf ouPYVpNRmEgVwLzEPE8gq4GILtUtPWH3Pv+diLG7xUf2ewigfDeSzzxwlvZHv1W02mkZ XVBw== X-Gm-Message-State: AOAM531YBchOoScDIYF2d2BsmOAK7RJt6H1UyapL+5gNqiJOuUvjLjjL ZHhVFWab+IsosIsijcM9oCETtQ== X-Received: by 2002:a2e:a786:: with SMTP id c6mr5298466ljf.96.1624999161108; Tue, 29 Jun 2021 13:39:21 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id bp34sm1716902lfb.125.2021.06.29.13.39.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Jun 2021 13:39:20 -0700 (PDT) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Stephen Boyd , Michael Turquette Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH 1/2] clk: qcom: fix error_path in gdsc_register Date: Tue, 29 Jun 2021 23:39:18 +0300 Message-Id: <20210629203919.2956918-1-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Properly handle and cleanup errors in gdsc_register() instead of just returning an error and leaving some of resources registered/hanging in the system. Signed-off-by: Dmitry Baryshkov --- drivers/clk/qcom/gdsc.c | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) -- 2.30.2 diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c index 51ed640e527b..241186d9d08c 100644 --- a/drivers/clk/qcom/gdsc.c +++ b/drivers/clk/qcom/gdsc.c @@ -429,7 +429,7 @@ int gdsc_register(struct gdsc_desc *desc, scs[i]->rcdev = rcdev; ret = gdsc_init(scs[i]); if (ret) - return ret; + goto err_init; data->domains[i] = &scs[i]->pd; } @@ -437,11 +437,35 @@ int gdsc_register(struct gdsc_desc *desc, for (i = 0; i < num; i++) { if (!scs[i]) continue; - if (scs[i]->parent) - pm_genpd_add_subdomain(scs[i]->parent, &scs[i]->pd); + if (scs[i]->parent) { + ret = pm_genpd_add_subdomain(scs[i]->parent, &scs[i]->pd); + if (ret) + goto err_subdomain; + } } - return of_genpd_add_provider_onecell(dev->of_node, data); + ret = of_genpd_add_provider_onecell(dev->of_node, data); + if (!ret) + return 0; + +err_subdomain: + i--; + for (; i >= 0; i--) { + if (!scs[i] || !scs[i]->parent) + continue; + pm_genpd_remove_subdomain(scs[i]->parent, &scs[i]->pd); + } + i = num; + +err_init: + i--; + for (; i >= 0; i--) { + if (!scs[i]) + continue; + pm_genpd_remove(&scs[i]->pd); + } + + return ret; } void gdsc_unregister(struct gdsc_desc *desc)