From patchwork Tue May 30 09:39:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 13259614 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 DE0B1C77B73 for ; Tue, 30 May 2023 09:40:14 +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:References:In-Reply-To: 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: List-Owner; bh=gYuQ96ZP6OGrhrT4QCwdPiraEJQDoWfFcQbC74sVIfk=; b=wmjEKFMzarLmDE hvx8D6qIqRuEvwJuqn64vxj9OFgc8PqKoOIkxepGkCdjCdHM8eEXE+EdYGP7JctO0+lz5AFmg/6Cr KRabc2HtTIHc+6oVm60+x4J1EnCPjvTcKCblretr6+WfSDHBleZH8vq+iENhz9B8j1hN8Sl7gWNEz ZtNd7dnaWfAK7kkfTvqKtfCRq5DhzL15cfZK+49/tmbQoduoKjCZeAuBQL2bXuSwu+R3IxfY7Ywr0 z1yG4RtCymGOoBuFEzD5hTfRc9OqjsRPyvJ0tvOsMCmx/xC6wVDdm1O8VVoTCw9G1lPFKBq041CE4 eSMf1SYi2qkimwAb+YzA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q3vpZ-00DCdz-13; Tue, 30 May 2023 09:39:53 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q3vpR-00DCas-1E for linux-arm-kernel@lists.infradead.org; Tue, 30 May 2023 09:39:46 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1685439585; x=1716975585; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yiEmmbelkqld6VEDr+dlG9UbkFCO18sqg02xHz8i2rM=; b=FF8p/FcCqo7T31aNwxpNA2IZsXOS1vyk/RvTvbhcSCzrc8SltzBixfeW Vc77HYR9/mEYe3SJItpNBQ8ovBv/rc1wfOmHYhfZtmMN9J0PMj8blTw4M f+HiMTDiE3J5SsYll+EWx2hKW6gmGdKUb4pXR5NHcR5HoF6OJOrMCImoM hmXYkIq1OECGxUd7YGtOItlvBa0p23Evfq9wHRO+CfiLYCvFtVMJcFzeI gq1BOwmyFBPTpisps5vO3eZwyILqSLzzu454neC+nmrV0L2pgW0gmt66L nAkfdqy7RiwfpiuOLSsLqcMDVQaTzLcJa18ZwKOFr7BFMgZ2WPU8Uik6M w==; X-IronPort-AV: E=Sophos;i="6.00,203,1681196400"; d="scan'208";a="213686407" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 30 May 2023 02:39:44 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Tue, 30 May 2023 02:39:44 -0700 Received: from m18063-ThinkPad-T460p.mchp-main.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Tue, 30 May 2023 02:39:40 -0700 From: Claudiu Beznea To: , , , , , , CC: , , , , , , , , , Claudiu Beznea Subject: [PATCH 2/8] clk: cdce925: check return value of kasprintf() Date: Tue, 30 May 2023 12:39:07 +0300 Message-ID: <20230530093913.1656095-3-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230530093913.1656095-1-claudiu.beznea@microchip.com> References: <20230530093913.1656095-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230530_023945_475957_C1C97317 X-CRM114-Status: GOOD ( 11.33 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org kasprintf() returns a pointer to dynamically allocated memory. Pointer could be NULL in case allocation fails. Check pointer validity. Identified with coccinelle (kmerr.cocci script). Fixes: 19fbbbbcd3a3 ("Add TI CDCE925 I2C controlled clock synthesizer driver") Depends-on: e665f029a283 ("clk: Convert to using %pOFn instead of device_node.name") Signed-off-by: Claudiu Beznea --- drivers/clk/clk-cdce925.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/clk/clk-cdce925.c b/drivers/clk/clk-cdce925.c index 6350682f7e6d..87890669297d 100644 --- a/drivers/clk/clk-cdce925.c +++ b/drivers/clk/clk-cdce925.c @@ -701,6 +701,10 @@ static int cdce925_probe(struct i2c_client *client) for (i = 0; i < data->chip_info->num_plls; ++i) { pll_clk_name[i] = kasprintf(GFP_KERNEL, "%pOFn.pll%d", client->dev.of_node, i); + if (!pll_clk_name[i]) { + err = -ENOMEM; + goto error; + } init.name = pll_clk_name[i]; data->pll[i].chip = data; data->pll[i].hw.init = &init; @@ -742,6 +746,10 @@ static int cdce925_probe(struct i2c_client *client) init.num_parents = 1; init.parent_names = &parent_name; /* Mux Y1 to input */ init.name = kasprintf(GFP_KERNEL, "%pOFn.Y1", client->dev.of_node); + if (!init.name) { + err = -ENOMEM; + goto error; + } data->clk[0].chip = data; data->clk[0].hw.init = &init; data->clk[0].index = 0; @@ -760,6 +768,10 @@ static int cdce925_probe(struct i2c_client *client) for (i = 1; i < data->chip_info->num_outputs; ++i) { init.name = kasprintf(GFP_KERNEL, "%pOFn.Y%d", client->dev.of_node, i+1); + if (!init.name) { + err = -ENOMEM; + goto error; + } data->clk[i].chip = data; data->clk[i].hw.init = &init; data->clk[i].index = i;