From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELsGYxXOLDKZ8DWPZQkgKehTp0n8WCMaQ7C9+DT1RczLAijqv3ScdIv4auPJHyOWPM0yYAF3 ARC-Seal: i=1; a=rsa-sha256; t=1519981077; cv=none; d=google.com; s=arc-20160816; b=SQrc1cs9UJ0Wc+WM1SaEBdzOXbKAwLDre/SA452eDWAOexoQtgDyT7zr7PBuELoWuq RjRM781qpAHRZN3lis724h8Usax1NP/TsXf2FftEYD7/YesivHiy4y5iZqDfuxKsfxm7 IkFLsBlndyrLFQtTEJTpvAZ86mWzYSaCAhbzS0y+/4fhMlYIMN1nXAps8iq8/7exEszt MWBy6fN0skNo4VsyukNJH9w1cidBPfRJV0cbJ1goHthVLaegTfb8PKS4ksX2ey5Gsl1W bcnDHVkD3hWNfKSgAyCH6kV2koRzARlxW8EdBOIKNPt229ct+V6BcIPZiGK62XEAOSm/ 4wxw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=3StV3OegIm8ZXQ7t8k5Jh3osi2DRhfOnqoVArvgQI8E=; b=mwEG5Z0c1lrdiYP/4PxyekV9cIPgjXZKWiTBnwFi0veQJUqdwrtj83xwRzI6bHByEz DPbM+UVWlLL+mHOr+CEQsRaX43o5K6GTiO88o8ZmE3GYBcvoSF3yq/Fy95wFt2XI5Uq0 DKSXkFWWloEogi/Uw7PkvxpMGillJTod1cNADwquq2TOrUcbymWu/6sjDK88P0l2F27n xsp+sxYHNliqlincAOiFfK9NuTJ74hNzvyej7gs38F7/hCRNkL2N58pXfxXcn4dMoyOy slRA+LiNbXO7N1JTR7Ailr7YKwdy0UzPFJ9vR/E+USE6qxkvzflv5pf4+w78/yc8cOh3 igyQ== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 83.175.124.243 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 83.175.124.243 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Xiongwei Song , =?UTF-8?q?Christian=20K=C3=B6nig?= , Alex Deucher , Sasha Levin Subject: [PATCH 4.9 41/56] drm/ttm: check the return value of kzalloc Date: Fri, 2 Mar 2018 09:51:27 +0100 Message-Id: <20180302084451.651166254@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180302084449.568562222@linuxfoundation.org> References: <20180302084449.568562222@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1593815303183169989?= X-GMAIL-MSGID: =?utf-8?q?1593815678456815584?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Xiongwei Song [ Upstream commit 19d859a7205bc59ffc38303eb25ae394f61d21dc ] In the function ttm_page_alloc_init, kzalloc call is made for variable _manager, we need to check its return value, it may return NULL. Signed-off-by: Xiongwei Song Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/ttm/ttm_page_alloc.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -818,6 +818,8 @@ int ttm_page_alloc_init(struct ttm_mem_g pr_info("Initializing pool allocator\n"); _manager = kzalloc(sizeof(*_manager), GFP_KERNEL); + if (!_manager) + return -ENOMEM; ttm_page_pool_init_locked(&_manager->wc_pool, GFP_HIGHUSER, "wc");