From patchwork Sat Oct 12 09:07:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Markus Elfring X-Patchwork-Id: 11186721 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7769A912 for ; Sat, 12 Oct 2019 09:07:59 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 54E8C206A1 for ; Sat, 12 Oct 2019 09:07:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="GQadb0XU"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=web.de header.i=@web.de header.b="FnFKrp2/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 54E8C206A1 Authentication-Results: mail.kernel.org; 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Thus add the corresponding error handling. Fixes: 19022aaae677dfa171a719e9d1ff04823ce65a65 ("staging: drm/imx: Add parallel display support") Signed-off-by: Markus Elfring --- drivers/gpu/drm/imx/parallel-display.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) -- 2.23.0 diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c index 35518e5de356..39c4798f56b6 100644 --- a/drivers/gpu/drm/imx/parallel-display.c +++ b/drivers/gpu/drm/imx/parallel-display.c @@ -210,8 +210,13 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data) return -ENOMEM; edidp = of_get_property(np, "edid", &imxpd->edid_len); - if (edidp) + if (edidp) { imxpd->edid = kmemdup(edidp, imxpd->edid_len, GFP_KERNEL); + if (!imxpd->edid) { + devm_kfree(dev, imxpd); + return -ENOMEM; + } + } ret = of_property_read_string(np, "interface-pix-fmt", &fmt); if (!ret) { From patchwork Sat Oct 12 09:10:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Markus Elfring X-Patchwork-Id: 11186725 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C59EF912 for ; 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b=QYvL9JBcmq4Y7W7ZCAf9OAkEEoIP2SDY5O8iN/lGycmB9JtPDnIQB3IyBnlMiIgVs 5znPrSa+v72kik/TCsIzwEPQuihhnFSnq2cB+6Yi2VMqSMEkVYPrc2+16UlnziB/rf 0nEpoMoSaXhDpx4vTEBpG89Xq69ICncHZpO+8o5A= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.132.155.250]) by smtp.web.de (mrweb003 [213.165.67.108]) with ESMTPSA (Nemesis) id 0LmLac-1hkQtP34le-00ZulL; Sat, 12 Oct 2019 11:10:09 +0200 Subject: [PATCH 2/2] drm/imx: Fix error handling for a kmemdup() call in imx_ldb_panel_ddc() From: Markus Elfring To: dri-devel@lists.freedesktop.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, Daniel Vetter , David Airlie , Fabio Estevam , Philipp Zabel , Sascha Hauer , Shawn Guo , Navid Emamdoost , Peter Senna Tschudin References: <20191004190938.15353-1-navid.emamdoost@gmail.com> <540321eb-7699-1d51-59d5-dde5ffcb8fc4@web.de> <2abf545b-023b-853a-95ef-ce99e1896a5d@web.de> Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: Date: Sat, 12 Oct 2019 11:10:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <2abf545b-023b-853a-95ef-ce99e1896a5d@web.de> Content-Language: en-US X-Provags-ID: V03:K1:gGpFAHArYSlK95NnhPUT1yPh1BNAB5JeqT5lvvhGTGSuyV5zH2I sdx9BqVDf55FU4s0a2Cm5njWxw+t7cls6U+epxcVScFoBPkG6ro5FaEYcjWdVs8iiXsRNJz Ir1ii7xDM+EeNXS+FPMJmnKl04inQyH2ETcZch9USRk718nPTs6/sHQix9z6EirvZx4UTQS /4us6+FXgIvM701oHk1ig== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:5/nCnSwZ9tg=:Pz7hYiKFMER0YQ1nuGXVTk 0qLcpA0GPD+SF8hHYWyxLv8GuY7/pYy4Qd+ChUgPr1GiPSDJKNi0+Y5Wk+AxyrxsDNSFRYDzI VUNWDz8xb7luxw4yMuFG/2aHCMhqdcctgeIlMs+s0PkWWPTahlTYOitYHP0iybDdDwZLhHPhL mPM9VnjJvk26Wn78pVP99BnKeHUQ5aKcRXHyO8jDTyAqgi7ywzMbLoeudujyp70OiFpXczG0N V0+gEjAwyu/IMbkqWju6wGVOsnFtzBKUroobPy9g6B/jiyHAsu1SX8x43LqfB/Spz5XmE6RHi g/iHkpY5mUTuwOh/B88UIPJstmTQwq7MdoUpz0lIHDen66dyQp8HKF+FhjdYT0DCtVgu754JO IEeFrFur/KLHfXtZG24sDy63ZMkGCltC7twI0qLpzdDn4h/01zHXXwuDABnEfSjVtWiFg5YMB w8VTuYqCptBruESxOwVtICvUISHaDhHg0kLNc4r+xGh4WHeTrJhmV0eczeF5FbS2Of82mrtKR Li50JJ7F3i2OoGDB+7yvGukKl9Hrgf3Nz8Mq5/iRM0pf+N0KktuVdstFM5jy3nABaE+Y8ohLo 0r52fkz/l0ESnPDqYZwXzV0BzPIWD3RiNB1Q+CljwcCoG9ApHOlwXMJaWJfdnOPc0nOiC2Aok 3M+KNAdhjrB3AP5tMILrcCxNaRD2eJ/+sCXr/pAgBnkfy2dfQq14SDeF1v3xwix/oTHpD6Ypn CahYImR//ezb11Cu7Vpish4gfMKppVzyPbX7lApbd5a7VyvSrlCu3XMSqm9cGVQBpTkglTbr9 UweNZsunxTxuMBN4wC9hjW4iKb2rs2a7JEJ5tJpYYlQm7591AugbHFTrTgvRpZF0HIYOCQkqz gJPla36BVOSvRVgK6Y7DULT0r903ku08VWgwNVE+GYwcy8rxtM9XiuIt7zCxsPV3ziKv8nRPv xQCQ+72/i3DYoc+qVIKke+THo9CpOf1O87k5UOjB0tKrt0aj42vidjHPL3Z5m+XGiJkSasCSY ElzKLYLvETN+z3M2NgPD4Fl3XWhONPNPw+BWVINHyRoiej2J8F+ioP0h+NKyuhzBYLNZE4yo2 Bq11r1IxumnT+QO3aTv8P9UBLMwLH2chzjWyAmkB+1UyunBkh6x06PeezDijqNiDjqWdaisAt A9UsC+vWOL0UbEYhjMEEH7mW4dlW7Vy9JJWTizKPz1S634mAWz5LP4Z5WZoCbVmUHxSDl313F VujI2nYe/zQgsjWWDhzovNDN3BBhq1iNtL54E1UC6fqvy1Q/MltWmqbd2TX8= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191012_021025_634826_F6A1E911 X-CRM114-Status: GOOD ( 11.34 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markus.elfring[at]web.de) -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Herring , kernel-janitors@vger.kernel.org, Kangjie Lu , LKML , Thierry Reding , Stephen McCamant , Navid Emamdoost Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Markus Elfring Date: Sat, 12 Oct 2019 10:33:47 +0200 The return value from a call of the function “kmemdup” was not checked in this function implementation. Thus add the corresponding error handling. This issue was detected by using the Coccinelle software. Fixes: dc80d7038883feca2abd08975165bc0d83c84762 ("drm/imx-ldb: Add support to drm-bridge") Signed-off-by: Markus Elfring --- drivers/gpu/drm/imx/imx-ldb.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.23.0 diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c index 208069faf183..801a2265dd11 100644 --- a/drivers/gpu/drm/imx/imx-ldb.c +++ b/drivers/gpu/drm/imx/imx-ldb.c @@ -569,6 +569,8 @@ static int imx_ldb_panel_ddc(struct device *dev, channel->edid = kmemdup(edidp, channel->edid_len, GFP_KERNEL); + if (!channel->edid) + return -ENOMEM; } else if (!channel->panel) { /* fallback to display-timings node */ ret = of_get_drm_display_mode(child,