From mboxrd@z Thu Jan 1 00:00:00 1970 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 phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4C5D6C5478C for ; Mon, 4 Mar 2024 14:43:29 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 0473487FAE; Mon, 4 Mar 2024 15:43:16 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="WOJKQ1kN"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 7314D87F92; Mon, 4 Mar 2024 15:43:15 +0100 (CET) Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 932D787FA9 for ; Mon, 4 Mar 2024 15:43:10 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=o451686892@gmail.com Received: by mail-pl1-x631.google.com with SMTP id d9443c01a7336-1dc5d0162bcso38227945ad.0 for ; Mon, 04 Mar 2024 06:43:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1709563388; x=1710168188; darn=lists.denx.de; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=V9B66oKheLZECYu8R4q13CZZkJRH/+q6HouwoF0reSE=; b=WOJKQ1kNzCFxGnlQ+JgSuiOnHGEzygfvdLDTQjDBPu2wk0Tksa1srJOibEEru03lHt 6uIsalng6p2rX0GM4pCbb3U8G5M5yZdS369Ey8Pn2eVkdPpiT9tm56AP8ZSwuk4wOYUn Nm5oEUDHFdKsyQaqSRLU5bd2JkINWI+RAWwPTBsFKwbRgqLiwCeKA1aBn0jp6XRN0/ee oo6lNf9J6GMX+SnKfbdPFXSe6Fcikid6wXZGrS8gU+S7WdlqtB085qd2GC/Y+xr/LWBE fJQenL5t9+IQNe8TeAf1exlJSpPnfAxubTPTyPPkhwoxwkHXSISwSQEQizSVT0z/rXu6 W6Ng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709563388; x=1710168188; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=V9B66oKheLZECYu8R4q13CZZkJRH/+q6HouwoF0reSE=; b=LlqZ4Tw7n4AMR1wsocCRtYEOwDiHGZrjDxnlTTN7LQ9s4+/cQx8lfupNKr0CNdtyZP ZKCH3i32OKD4INW9kQv6qQY1TI4QYTUWrPSOxEgM8EsTk1gWmFupKNv7b40hgAoo6R48 Q1xfobl1FA/yIpVWEw73wLieoWzQ2HFVDs1EzldgRIx09DhOdQGx/E6JmezCo5lQqp5/ Y/BiDy+xV7D8UrMaA6UDB5hVYRMjbL9TqNVS0RyYQhtlcQH2HQ+XEhWHdfD9vgmpUXgV 3nrulRrEymzbbJUJfP9Zou+Elh8eG/n38mFH/ZV6Fbg4ziIt2S5z3NuyzOGzUyKsNFjE McRA== X-Forwarded-Encrypted: i=1; AJvYcCUuNBxr/as+XrpUkHahjAUUGPWruIY/oyjl2Zv4RRmD1ite51yeZFkqBXVfLIf6E9iXel+eo9sCji5HvudYH5DkN/bGjA== X-Gm-Message-State: AOJu0YwXZZKdf1/KTp9nJ+gYN9IIDtzwrPcTAueHCN6a3ZwjkZIFD1bf 1mVip39pNQX81FmQBplehdwQlAJfkJ+RPJgoNlBZJK7vb5lz/Nwn X-Google-Smtp-Source: AGHT+IEEM2VTEpx5ngWF36rWr526kWzgpCAP31yE3X02hp+oLXcEeWyPTG2AMbgZFqDcl7QtYUSWMQ== X-Received: by 2002:a17:903:2409:b0:1dc:a605:5435 with SMTP id e9-20020a170903240900b001dca6055435mr9750422plo.31.1709563388165; Mon, 04 Mar 2024 06:43:08 -0800 (PST) Received: from ownia.localdomain ([8.210.91.195]) by smtp.gmail.com with ESMTPSA id lc8-20020a170902fa8800b001dc8923a2c4sm8629529plb.294.2024.03.04.06.43.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Mar 2024 06:43:07 -0800 (PST) From: Weizhao Ouyang To: Sughosh Ganu , Heinrich Schuchardt , Tom Rini , Etienne Carriere , Weizhao Ouyang , Simon Glass , Peng Fan , Ilias Apalodimas , Jens Wiklander , Abdellatif El Khlifi , u-boot@lists.denx.de Subject: [PATCH v4 2/3] driver: rng: Fix SMCCC TRNG crash Date: Mon, 4 Mar 2024 14:42:41 +0000 Message-Id: <20240304144242.11666-3-o451686892@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240304144242.11666-1-o451686892@gmail.com> References: <20240304144242.11666-1-o451686892@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Fix a SMCCC TRNG null pointer crash due to a failed smccc feature binding. Fixes: 53355bb86c25 ("drivers: rng: add smccc trng driver") Reviewed-by: Heinrich Schuchardt Signed-off-by: Weizhao Ouyang --- v3: add Fixes tag --- drivers/rng/smccc_trng.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rng/smccc_trng.c b/drivers/rng/smccc_trng.c index 3a4bb33941..3087cb991a 100644 --- a/drivers/rng/smccc_trng.c +++ b/drivers/rng/smccc_trng.c @@ -166,7 +166,7 @@ static int smccc_trng_probe(struct udevice *dev) struct smccc_trng_priv *priv = dev_get_priv(dev); struct arm_smccc_res res; - if (!(smccc_trng_is_supported(smccc->invoke_fn))) + if (!smccc || !(smccc_trng_is_supported(smccc->invoke_fn))) return -ENODEV; /* At least one of 64bit and 32bit interfaces is available */ -- 2.40.1