Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932717AbcJGTpd (ORCPT ); Fri, 7 Oct 2016 15:45:33 -0400 Received: from mout.web.de ([217.72.192.78]:59434 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932611AbcJGTp2 (ORCPT ); Fri, 7 Oct 2016 15:45:28 -0400 Subject: [PATCH 1/2] [media] dvb-tc90522: Use kmalloc_array() in tc90522_master_xfer() To: linux-media@vger.kernel.org, Akihiro Tsukada , Mauro Carvalho Chehab , Michael Ira Krufky References: <566ABCD9.1060404@users.sourceforge.net> <906cc86f-bac0-fd47-8a6f-d3310b10fd08@users.sourceforge.net> Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: SF Markus Elfring Message-ID: <78258072-609a-c887-11d9-7206c3e4d2a8@users.sourceforge.net> Date: Fri, 7 Oct 2016 21:45:05 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <906cc86f-bac0-fd47-8a6f-d3310b10fd08@users.sourceforge.net> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:JDal7S2Ptfd91AREQ07BwIn28FOzAP1AgRwQ1MG/rZRfrrFB25L CJ6uVtk0P1hSA0BGD7pGCTfeyPRjYgGyD6+GfXcQQC8LPOzW4mTcoJKT71MrRnVfptV54p+ GW3LKmiiDT0FOCvMqnhOHvlVYvruthIFE/PpF3W3ldkp38GSrHi+44Vr+cqA4xrpSXPiKbC vEcBiROooa3fllwI5TP4Q== X-UI-Out-Filterresults: notjunk:1;V01:K0:URrxm6p+wiY=:oAMDjbC+1rOH3SqwGBlxRJ 5AnIi6A+p1WLg6CXoMPED24bXWWlG2gcUaQzGNgkHReDsnkVJAYOtfnCt+CVJeFrUfpgD14qd XhNM0zTUyNV7A3ureA+efwpmtCmoYuBtR/6o5Wa3vwahIc9uRMBiKvQ0qxs0Jy5Oa/tXhYmmu nfKCbhjt6RStiPo3lxJHbTseqtRPG3JdiiI4EWCn047qf4zftGk81OkUr0PuOgMt5hY3iXI5n +Uk3HQJprz5xB+AMZFCzVv0zyNGvCiPTAIAtHisgojRQGTtpL79zWv59b5hGmd4JcgpuqGF49 E7slMHZY8dhiZFb7In7xtmse7DnMnhiWrW7OhMrQ0511Q5m24EP9ItsHvBsB6A0gEpudRahhX zpv9EtTLbQEa9aqCHysEBo5JduQLnAyowlWimtWbWGT0O9G4wL/ayYLjBhX5HOrjSQZQiWLBm KBTUPZ1lJnXiJbuSA/ZrHCoSlf6UgGbsZuekmS81c676leh+qsTzMomWoS053thD/YLisI9h2 RTJSqB5RBLY3e9jnZLKDRiRIhjkNoAFmEiItd7kE/umPk+BNeFFJ5bZWEXU+2cq4klLrGapld Cn+/No2J9qEqiFU5FcK/ZVpNIlA5xyANdVg7JEcD2ovq4nmEahY8CcaOSCeWJrIZr4APYAx3C 9E5SFs9j7VgOW1omDN0gvqkVuzVFj9S3qqyWwEjzWY2e3vkjYYHkptHp25w7yLUrJlTWCtGIq 3CocXhbnY3Wc1WIZaQaqTYraktr6p0l+I7yE3R4aWvjEjuUIFsrgcqgz76W+S5d5nZ3ESkKza 3MvQ+Ja Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1064 Lines: 29 From: Markus Elfring Date: Fri, 7 Oct 2016 21:07:43 +0200 A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "kmalloc_array". This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- drivers/media/dvb-frontends/tc90522.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/dvb-frontends/tc90522.c b/drivers/media/dvb-frontends/tc90522.c index 31cd325..c2d45f0 100644 --- a/drivers/media/dvb-frontends/tc90522.c +++ b/drivers/media/dvb-frontends/tc90522.c @@ -656,7 +656,7 @@ tc90522_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) for (i = 0; i < num; i++) if (msgs[i].flags & I2C_M_RD) rd_num++; - new_msgs = kmalloc(sizeof(*new_msgs) * (num + rd_num), GFP_KERNEL); + new_msgs = kmalloc_array(num + rd_num, sizeof(*new_msgs), GFP_KERNEL); if (!new_msgs) return -ENOMEM; -- 2.10.1