From nobody Wed Dec 17 16:31:40 2025 Received: from mail-ej1-f49.google.com (mail-ej1-f49.google.com [209.85.218.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CF1E52EAB6A for ; Sun, 19 Oct 2025 14:13:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.49 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760883182; cv=none; b=Wa8DWxG5MeCPew9FRzm+KgtS9dsfkvPLLJT4OMQRIW7igieSqA1VF4ZdKD4S/wjGXqdnIOPe0X/tYkDXs4dc9cRtNXaYUqMqhQGIGn+CY/J5TViC2BuJsJR6yIXZFpb3nlopSda5NwMimqh8cjEZhCnQEwtzJ7YiyufQPzDAFlo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760883182; c=relaxed/simple; bh=OZvVTykIlBRbaETtgtNoTHwKA/K3IweojPWLke2286k=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=afvL2oPrmq4P6s4ChnZC5Ph6eOeVcV9NzOWN0OkN6PHvcwvsC+yOkjnMgLN2oDEN9OoaJrXlDa61xEzV5Swg1Gr5clf3QT7fBVF05K56SNU5k2ZO7uPLcKu0UlOLj9b7RcE8eDzlNeAODolqPi9ixD8Zt7jLcmywycfCYcj32eg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=AcX7YUcg; arc=none smtp.client-ip=209.85.218.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AcX7YUcg" Received: by mail-ej1-f49.google.com with SMTP id a640c23a62f3a-b5dfff01511so94985366b.2 for ; Sun, 19 Oct 2025 07:13:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1760883179; x=1761487979; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=OLOKqWlJM+Qls3gDoxvAM4+OyQdsVVtIrTMnLe6+7Bg=; b=AcX7YUcgQKcN39VuQ44MW1z+n6n5TKL5PGDe6uGiUQ30jwBS6PnFkX2X1HiSF+fhx2 fYQsL20mmKFi5tTXXHyJonKoSCwybgH/UmQwbHIbYZSzhSr/OFoN8/1aPjloS40N0Lnd V8/IJuZzPPrP7FRW90DZizCJdSCBwKpEGltQE9ElxfUiNdzua+M5d4Q5JSI1ToJS6ltk hM2TCe+r61H3bOHK7yFsi4CF2dhzxv56rIsl19ytqrtR/Z42XjBPoHCwL65KB/Lv3Cpz gIe1SSacnzTcBU/5jErLKSFWdR5ruaZ7gUaoCriWDT7pTTulS5zwYNLpe1LTYgiYcjkH 5aGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760883179; x=1761487979; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=OLOKqWlJM+Qls3gDoxvAM4+OyQdsVVtIrTMnLe6+7Bg=; b=efvhj7B+hV+boaZJjVaXDKYEoGGMOP1CVdz5rwGZoOiM39T9gQGzGtJ0TxrTAw5zlz 5V2dg2tc10laakGDRcb4+1f7Z1UJ/I/2g8HaUkXzUue4oxEUR4k+am+P/9S0yvZbfd6P 40wJtCsox95fulWdYyPr+AQTLcw+/FWrewRH3Fcpt72/vPWrmcugKKgKhbqmv69pfqky BMMwf4JiGq/N96sPLByMB+UDpitaZu8vbV+3aBPsM8ZABgnoyw5b+CkKvBqDUs/p+PLX mqJ27XlNd4V7gD7iIg6T0FW2H2qaaeZ22ijmndYwCKSeuVJP/Xe7tVNsogtFzT/S/dMC 60Wg== X-Forwarded-Encrypted: i=1; AJvYcCV5KLT1WS+a1QnKYF4DQSMEJflag6SPpHZYfrxuqHOZSbbeGt0ubvv8GuNPF+D7sEl8ni8oqntQZY/ysn4=@vger.kernel.org X-Gm-Message-State: AOJu0Yw6Tg2S7qoEa2hgtQSj108myg8kqgks6KWqBCIIB85gobmI474M zGOLei70ArbXYa/sVF+eFm+xRbDD7d+F3iojmkVREw+LxBnn+ek/kAty X-Gm-Gg: ASbGncsPNsiDBeuF0F0nsLdk2i/y/8nBqIUZCjjGWYoAMmCO6THJsxbHa+MwDwZzr7i CS3y3ecDndOY+9j313U//9cHYjl3t+ZnTGpIipFY4tyULtnMmH+e8i+qHzIfC2B0SwlJqUxL8g/ AQhP3SPAEwmPjK3bT0aqO/oeJOTuPnRlwFfeLRnFi/ulmA5tIsjpEM3JHw0cDu36H8BKYwCXA5N Wj3pUyPbv6JSdjgmQ8HRfs1LSiXmmn+D10FIRH0byqL8HoAEWOpwsiN9ziAmCMcDIrC+tQ04zDb yW0+gAjvUWEQmrehV1k9ouug0BT5rfZIgwU4aDSsb/zi6zlnczNbulfXc59Slic24joQNNgcStX DjWWsxjl2E/jzIGm3jSbW0IRqoUvllYmk14q6G9mcLHGrhq5OCtW8VofGh/zyWbbO5F3vzup6AR nyGRsc X-Google-Smtp-Source: AGHT+IF6kFqxZjmdvkiQmumLp5yXtfBfsGWcBoAvxoX6/vIZKFSk3vlT0KQXPw3Y30vQ7ooRKt1BnA== X-Received: by 2002:a05:6402:2681:b0:634:52c3:20f5 with SMTP id 4fb4d7f45d1cf-63c1f5738aamr5377085a12.0.1760883178967; Sun, 19 Oct 2025 07:12:58 -0700 (PDT) Received: from bhk ([165.50.121.102]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-63c4949bfd3sm4212111a12.41.2025.10.19.07.12.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Oct 2025 07:12:58 -0700 (PDT) From: Mehdi Ben Hadj Khelifa To: lanzano.alex@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, skhan@linuxfoundation.org, david.hunter.linux@gmail.com, khalid@kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, Mehdi Ben Hadj Khelifa Subject: [PATCH] drm/tiny: Use kmalloc_array() instead of kmalloc() Date: Sun, 19 Oct 2025 16:12:28 +0100 Message-ID: <20251019151247.171558-1-mehdi.benhadjkhelifa@gmail.com> X-Mailer: git-send-email 2.51.1.dirty Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace kmalloc() with kmalloc_array() to correctly handle array allocations and benefit from built-in overflow checking[1]. [1]:https://docs.kernel.org/process/deprecated.html Signed-off-by: Mehdi Ben Hadj Khelifa --- drivers/gpu/drm/tiny/repaper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c index 4824f863fdba..290132c24ff9 100644 --- a/drivers/gpu/drm/tiny/repaper.c +++ b/drivers/gpu/drm/tiny/repaper.c @@ -534,7 +534,7 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb,= const struct iosys_map * DRM_DEBUG("Flushing [FB:%d] st=3D%ums\n", fb->base.id, epd->factored_stage_time); =20 - buf =3D kmalloc(fb->width * fb->height / 8, GFP_KERNEL); + buf =3D kmalloc_array(fb->height / 8, fb->width, GFP_KERNEL); if (!buf) { ret =3D -ENOMEM; goto out_exit; --=20 2.51.1.dirty