From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757190AbZBFHRx (ORCPT ); Fri, 6 Feb 2009 02:17:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757034AbZBFHLd (ORCPT ); Fri, 6 Feb 2009 02:11:33 -0500 Received: from nwd2mail10.analog.com ([137.71.25.55]:1470 "EHLO nwd2mail10.analog.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754834AbZBFHLW (ORCPT ); Fri, 6 Feb 2009 02:11:22 -0500 X-IronPort-AV: E=Sophos;i="4.37,390,1231131600"; d="scan'208";a="82422023" From: Bryan Wu To: dbrownell@users.sourceforge.net, akpm@linux-foundation.org Cc: spi-devel-general@lists.sourceforge.net, linux-kernel@vger.kernel.org, Mike Frysinger , Bryan Wu Subject: [PATCH 18/20] Blackfin SPI Driver: fix NULL pointer crash Date: Fri, 6 Feb 2009 15:13:06 +0800 Message-Id: <1233904388-5765-19-git-send-email-cooloney@kernel.org> X-Mailer: git-send-email 1.5.6.3 In-Reply-To: <1233904388-5765-1-git-send-email-cooloney@kernel.org> References: <1233904388-5765-1-git-send-email-cooloney@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mike Frysinger fix NULL pointer crash when cleaning up from invalid platform resources Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- drivers/spi/spi_bfin5xx.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index f9e1fbc..9459c42 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -1178,6 +1178,9 @@ static void bfin_spi_cleanup(struct spi_device *spi) { struct chip_data *chip = spi_get_ctldata(spi); + if (!chip) + return; + if ((chip->chip_select_num > 0) && (chip->chip_select_num <= spi->master->num_chipselect)) peripheral_free(ssel[spi->master->bus_num] -- 1.5.6.3