From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932333AbdIXVZn (ORCPT ); Sun, 24 Sep 2017 17:25:43 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:58928 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932173AbdIXUfh (ORCPT ); Sun, 24 Sep 2017 16:35:37 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kashyap Desai , Shivasharan S , Hannes Reinecke , Tomas Henzl , "Martin K. Petersen" Subject: [PATCH 4.4 44/66] scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead Date: Sun, 24 Sep 2017 22:31:39 +0200 Message-Id: <20170924202922.389450320@linuxfoundation.org> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170924202920.581603259@linuxfoundation.org> References: <20170924202920.581603259@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Shivasharan S commit eb3fe263a48b0d27b229c213929c4cb3b1b39a0f upstream. After a kill adapter, since the cmd_status is not set, the IOCTLs will be hung in driver resulting in application hang. Set cmd_status MFI_STAT_WRONG_STATE when completing pended IOCTLs. Signed-off-by: Kashyap Desai Signed-off-by: Shivasharan S Reviewed-by: Hannes Reinecke Reviewed-by: Tomas Henzl Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/megaraid/megaraid_sas_base.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -1824,9 +1824,12 @@ static void megasas_complete_outstanding if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; if (cmd_mfi->sync_cmd && - cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT) + (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) { + cmd_mfi->frame->hdr.cmd_status = + MFI_STAT_WRONG_STATE; megasas_complete_cmd(instance, cmd_mfi, DID_OK); + } } } } else {