From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELu5iGNZ7djdduTcJGOcEcmXnZMLZ+wCVCunaRCdWUHkjeu5+0f3bFFydSHvmOS8dXjHXrz5 ARC-Seal: i=1; a=rsa-sha256; t=1519981389; cv=none; d=google.com; s=arc-20160816; b=JXPW/NTctm5cm4Gnfr8BmOR6JG9PZjZPWMoBpwQO8UQftyl75ay2JAwQWBddqmXaRo pIHbx0mZ6OyU4iMhM+5me68kVFzS+YfIxogzk0xgelC8/LfIwguoYqkZXa5+1MtfeoIp 3iJsv02RgrfBzPxIUY31pMVKXPc6yyQxzZQK2bn9CJ+ZxCgX9MgG0bGIubYHAT6E9XT9 n8n/+FLOqOyK7UMwaWTN32KWz+IYLof5009tcczlPx3nCQ8Ro8aZ/cbbkbCRk846Jej3 MT/lwvZb223jQ0vU1Jn1R+58iGLRDf4MEtpmYeACM76PZJMD8bsM7YnFek2Um++fp2VO QvBw== 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=csmhDmM0LDPVUm+81+Eu8iN002ex2qPELeF9y/fIv64=; b=RtUvGsawPg0x+080DS39KBV1kzPb5SilXpH4eG+qBZMYtCvfWndrytEEqQmC9K+w9T HWNm0C4LaDhvE5sh63SHgaBGW0ZWubKGjY0/m38Nc1oEFOQWg3WIamhkaEoSfjycscyp 2KP3iBkZsMXAk8ET0t8ymgpx5i86DVaMNIAWU7et+3P+h7aXLcq40QKUoiCwe959kGO6 OuQPt/bnfK/+ugUUjAcyIPJhi/YyJv70rKh0yV6xrhl8YxCcWDz0CrB9hpzXYbCbqeg8 uw7qD8qVafyFNDffiuEz2kam9cmAYB2ZImtyIuLJMgv4QJ0y7zuI9Lin0W2nKCRXVG80 zakg== 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 4.14 077/115] drm/ttm: check the return value of kzalloc Date: Fri, 2 Mar 2018 09:51:20 +0100 Message-Id: <20180302084506.970362081@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180302084503.856536800@linuxfoundation.org> References: <20180302084503.856536800@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?1593816005483427803?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-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 @@ -821,6 +821,8 @@ 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");