From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752780Ab1H0SNL (ORCPT ); Sat, 27 Aug 2011 14:13:11 -0400 Received: from p3plsmtps2ded03.prod.phx3.secureserver.net ([208.109.80.60]:55219 "HELO p3plsmtps2ded03-01.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1750997Ab1H0SL0 (ORCPT ); Sat, 27 Aug 2011 14:11:26 -0400 From: "K. Y. Srinivasan" To: gregkh@suse.de, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org Cc: "K. Y. Srinivasan" , Haiyang Zhang Subject: [PATCH 33/46] Staging: hv: vmbus: Check before invoking the channel callback Date: Sat, 27 Aug 2011 11:31:32 -0700 Message-Id: <1314469905-7058-33-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1314469905-7058-1-git-send-email-kys@microsoft.com> References: <1314469874-7017-1-git-send-email-kys@microsoft.com> <1314469905-7058-1-git-send-email-kys@microsoft.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When we close a channel, we set the corresponding callback function to NULL. Check before invoking the channel callback. Signed-off-by: K. Y. Srinivasan Signed-off-by: Haiyang Zhang --- drivers/staging/hv/connection.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/staging/hv/connection.c b/drivers/staging/hv/connection.c index a88ad70..7a3ec75 100644 --- a/drivers/staging/hv/connection.c +++ b/drivers/staging/hv/connection.c @@ -222,7 +222,7 @@ static void process_chn_event(u32 relid) */ channel = relid2channel(relid); - if (channel) { + if (channel && (channel->onchannel_callback != NULL)) { channel->onchannel_callback(channel->channel_callback_context); } else { pr_err("channel not found for relid - %u\n", relid); -- 1.7.4.1