Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935304Ab0HFTxx (ORCPT ); Fri, 6 Aug 2010 15:53:53 -0400 Received: from mail-ew0-f46.google.com ([209.85.215.46]:46135 "EHLO mail-ew0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965750Ab0HFTxg (ORCPT ); Fri, 6 Aug 2010 15:53:36 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer; b=tgokPfj1H1RFcVX4LKakjP2+vKO2B/K8e5N+Or7lOSlwLFUxmVJah0PKPsNBlSzSBW vS7Mww4svM5iN32YaiKFLCcMUOcv9HmSKbwROl/7/OHgBs1swxfAsUvo7//6vCdiNh5h mXqVlZGuwp271qmim5ZrJtSwEUTeKibyAhQP4= From: Kulikov Vasiliy To: kernel-janitors@vger.kernel.org Cc: Greg Kroah-Hartman , David Woodhouse , devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH 18/18] staging: spectra: call disable_pci_device() if pci_probe() failed Date: Fri, 6 Aug 2010 23:53:29 +0400 Message-Id: <1281124411-14011-1-git-send-email-segooon@gmail.com> X-Mailer: git-send-email 1.7.0.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2050 Lines: 63 Driver should call disable_pci_device() if it returns from pci_probe() with error. Also it must not be called if pci_request_region() fails as it means that somebody uses device resources and rules the device. Signed-off-by: Kulikov Vasiliy --- drivers/staging/spectra/lld_nand.c | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/staging/spectra/lld_nand.c b/drivers/staging/spectra/lld_nand.c index 13c3ad2..90eeb0a 100644 --- a/drivers/staging/spectra/lld_nand.c +++ b/drivers/staging/spectra/lld_nand.c @@ -2395,6 +2395,7 @@ static int nand_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) unsigned long csr_base; unsigned long csr_len; struct mrst_nand_info *pndev = &info; + int pci_dev_busy = 0; nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n", __FILE__, __LINE__, __func__); @@ -2411,19 +2412,22 @@ static int nand_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) csr_base = pci_resource_start(dev, 0); if (!csr_base) { printk(KERN_ERR "Spectra: pci_resource_start failed!\n"); - return -ENODEV; + ret = -ENODEV; + goto failed_req_csr; } csr_len = pci_resource_len(dev, 0); if (!csr_len) { printk(KERN_ERR "Spectra: pci_resource_len failed!\n"); - return -ENODEV; + ret = -ENODEV; + goto failed_req_csr; } ret = pci_request_regions(dev, SPECTRA_NAND_NAME); if (ret) { printk(KERN_ERR "Spectra: Unable to request " "memory region\n"); + pci_dev_busy = 1; goto failed_req_csr; } @@ -2464,6 +2468,8 @@ static int nand_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) failed_remap_csr: pci_release_regions(dev); failed_req_csr: + if (!pci_dev_busy) + pci_disable_device(dev); return ret; } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/