From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934371Ab0EDWTL (ORCPT ); Tue, 4 May 2010 18:19:11 -0400 Received: from mail-out.m-online.net ([212.18.0.9]:48583 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760226Ab0EDWTH (ORCPT ); Tue, 4 May 2010 18:19:07 -0400 X-Auth-Info: klgDfTrtaRLsaDBHmJ+5isjfMzJNHSdDdWQVybqADas= From: Anatolij Gustschin To: linux-kernel@vger.kernel.org Cc: linuxppc-dev@ozlabs.org, grant.likely@secretlab.ca, leonardo.lists@gmail.com, gregkh@suse.de, Anatolij Gustschin Subject: [PATCH] serial: mpc52xx_uart: fix null pointer dereference Date: Wed, 5 May 2010 00:18:59 +0200 Message-Id: <1273011539-13994-1-git-send-email-agust@denx.de> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit 6acc6833510db8f72b5ef343296d97480555fda9 introduced NULL pointer dereference and kernel crash on ppc32 machines while booting. Fix this bug now. Reported-by: Leonardo Chiquitto Signed-off-by: Anatolij Gustschin --- drivers/serial/mpc52xx_uart.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index a176ab4..02469c3 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c @@ -1467,7 +1467,7 @@ mpc52xx_uart_init(void) /* * Map the PSC FIFO Controller and init if on MPC512x. */ - if (psc_ops->fifoc_init) { + if (psc_ops && psc_ops->fifoc_init) { ret = psc_ops->fifoc_init(); if (ret) return ret; -- 1.7.0.4