From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752631AbbJEP1a (ORCPT ); Mon, 5 Oct 2015 11:27:30 -0400 Received: from mo4-p00-ob.smtp.rzone.de ([81.169.146.221]:14414 "EHLO mo4-p00-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751351AbbJEP11 (ORCPT ); Mon, 5 Oct 2015 11:27:27 -0400 X-RZG-AUTH: :P2EQZWCpfu+qG7CngxMFH1J+yackYocTD1iAi8x+OWi/zfN1cLnDYUgsRVyMl4Hh95eBMq5urGmcLXFm8w1jh+YBTMk= X-RZG-CLASS-ID: mo00 From: Olaf Hering To: kys@microsoft.com, haiyangz@microsoft.com, gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, Olaf Hering Subject: [PATCH 4/5] Drivers: hv: util: catch allocation errors Date: Mon, 5 Oct 2015 15:27:18 +0000 Message-Id: <1444058839-19008-5-git-send-email-olaf@aepfle.de> X-Mailer: git-send-email 2.5.2 In-Reply-To: <1444058839-19008-1-git-send-email-olaf@aepfle.de> References: <1444058839-19008-1-git-send-email-olaf@aepfle.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Catch allocation errors in hvutil_transport_send. Fixes: 14b50f80c32d ('Drivers: hv: util: introduce hv_utils_transport abstraction') Signed-off-by: Olaf Hering --- drivers/hv/hv_utils_transport.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transport.c index 6a9d80a..1505ee6 100644 --- a/drivers/hv/hv_utils_transport.c +++ b/drivers/hv/hv_utils_transport.c @@ -204,9 +204,12 @@ int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len) goto out_unlock; } hvt->outmsg = kzalloc(len, GFP_KERNEL); - memcpy(hvt->outmsg, msg, len); - hvt->outmsg_len = len; - wake_up_interruptible(&hvt->outmsg_q); + if (hvt->outmsg) { + memcpy(hvt->outmsg, msg, len); + hvt->outmsg_len = len; + wake_up_interruptible(&hvt->outmsg_q); + } else + ret = -ENOMEM; out_unlock: mutex_unlock(&hvt->outmsg_lock); return ret;