From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=192.55.52.151; helo=mga17.intel.com; envelope-from=star.zeng@intel.com; receiver=edk2-devel@lists.01.org Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id D6931222DE135 for ; Thu, 8 Feb 2018 18:39:33 -0800 (PST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Feb 2018 18:45:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,481,1511856000"; d="scan'208";a="16446959" Received: from shwdeopenpsi068.ccr.corp.intel.com ([10.239.158.46]) by fmsmga007.fm.intel.com with ESMTP; 08 Feb 2018 18:45:16 -0800 From: Star Zeng To: edk2-devel@lists.01.org Cc: Star Zeng , Ruiyu Ni , Hao Wu Date: Fri, 9 Feb 2018 10:45:13 +0800 Message-Id: <1518144314-18356-1-git-send-email-star.zeng@intel.com> X-Mailer: git-send-email 2.7.0.windows.1 Subject: [PATCH] SourceLevelDebugPkg DebugUsb3: Check mUsb3Instance before dereferencing it X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Feb 2018 02:39:34 -0000 Cc: Ruiyu Ni Cc: Hao Wu Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng --- .../Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c index 1582b9a8d6de..29cec56f39dc 100644 --- a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c +++ b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Dxe.c @@ -443,7 +443,7 @@ DebugCommunicationUsb3DxeConstructor ( } Done: - if (mUsb3Instance->Ready && (mUsb3Instance->PciIoEvent == 0)) { + if ((mUsb3Instance != NULL) && mUsb3Instance->Ready && (mUsb3Instance->PciIoEvent == 0)) { Status = Usb3NamedEventListen ( &gEfiPciIoProtocolGuid, TPL_NOTIFY, -- 2.7.0.windows.1