From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760215Ab3LFX3G (ORCPT ); Fri, 6 Dec 2013 18:29:06 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:48958 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161563Ab3LFXUd (ORCPT ); Fri, 6 Dec 2013 18:20:33 -0500 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Takashi Iwai , Kamal Mostafa Subject: [PATCH 3.8 029/152] ALSA: 6fire: Fix probe of multiple cards Date: Fri, 6 Dec 2013 15:09:13 -0800 Message-Id: <1386371476-2477-30-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1386371476-2477-1-git-send-email-kamal@canonical.com> References: <1386371476-2477-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.8.13.14 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai commit 9b389a8a022110b4bc055a19b888283544d9eba6 upstream. The probe code of snd-usb-6fire driver overrides the devices[] pointer wrongly without checking whether it's already occupied or not. This would screw up the device disconnection later. Spotted by coverity CID 141423. Signed-off-by: Takashi Iwai Signed-off-by: Kamal Mostafa --- sound/usb/6fire/chip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c index 4394ae7..0716ba6 100644 --- a/sound/usb/6fire/chip.c +++ b/sound/usb/6fire/chip.c @@ -101,7 +101,7 @@ static int usb6fire_chip_probe(struct usb_interface *intf, usb_set_intfdata(intf, chips[i]); mutex_unlock(®ister_mutex); return 0; - } else if (regidx < 0) + } else if (!devices[i] && regidx < 0) regidx = i; } if (regidx < 0) { -- 1.8.3.2