From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELsJ8Wn8odqcgMqW+LwQSFien3/UnVHq1lsrmrETPMIlDViwqLYOg1rjgo8YEcvbM43NtfDe ARC-Seal: i=1; a=rsa-sha256; t=1519980719; cv=none; d=google.com; s=arc-20160816; b=xCeYkNfSLuGOyuhsF0BWryiwLNHS0FOZrL2fYBCIDxyfrlW5XolAYMBHjijOWEvj9r 3xaD+b/aT8u2ttsGlbgnJu0RVaUqxYKy4qNUD0/wDFIdsqsBvltBvlvec+qx4vwJab4O /jsnMOkbLqjNyxMsP5bUaT3iKbJz7wIH95uDbMoBk8SNL+Ann8Tc5mZp5okxfEpgyuWj 9bwnwsyb9UeA5uhT10YxIJ4x5VgSigWzH604qqlkPkhT+U/BGR0s106X4VaE1+riNzQG OcVl1yhZqvVLPeRZB6uWhaOQPXIPtQ30N/gsWyxk5eSHmI9YtX/H+WFkso/17aqXWE/u sr8A== 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=fH8T9nzzkPNbhh4wwOiGBL3IuyrKcvQqPEljeNiTVdk=; b=vpkx2xB4KUE8M7z9AM7Bda/gawOxbfzBHisSY+SBq8D8JkdrGheqadEIHKK6V1rDT8 0e+YiqWMiiBOo2MWpITspCCxuGBxvyh4mud9FJexGlX0yLFdPgfb2iSZN5ybCgYHn+eD 4LTTKYSLvBQIpdsh4sjloWhTgX7qz3Qx1S7zSPrTP3eDd8eynH3umfrfugI7SogL1feF bvpekGVxBOnzdirHDb9k2NE1+PRxnaGWxdDvqaR02Wv2iSkTC08yhiH2X+5jwBrR4Z7e H2+YibqDPTT0DFNKr+voGtStWnAgpVTJK3gXXB50u7USSAWAjphMRqyBR/0oNNjo1SVB kDkw== 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 3.18 17/24] drm/ttm: check the return value of kzalloc Date: Fri, 2 Mar 2018 09:51:14 +0100 Message-Id: <20180302084239.990044316@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180302084239.157503766@linuxfoundation.org> References: <20180302084239.157503766@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?1593815303183169989?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 3.18-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");