From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755815Ab2GaEvV (ORCPT ); Tue, 31 Jul 2012 00:51:21 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:48875 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755725Ab2GaEvJ (ORCPT ); Tue, 31 Jul 2012 00:51:09 -0400 Message-Id: <20120731044315.770748839@decadent.org.uk> User-Agent: quilt/0.60-1 Date: Tue, 31 Jul 2012 05:43:38 +0100 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Nishanth Menon , Steve Sakoman , Tony Lindgren , Kevin Hilman Subject: [ 28/73] ARM: OMAP2+: OPP: Fix to ensure check of right oppdef after bad one In-Reply-To: <20120731044310.013763753@decadent.org.uk> X-SA-Exim-Connect-IP: 2001:470:1f08:1539:21c:bfff:fe03:f805 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nishanth Menon commit b110547e586eb5825bc1d04aa9147bff83b57672 upstream. Commit 9fa2df6b90786301b175e264f5fa9846aba81a65 (ARM: OMAP2+: OPP: allow OPP enumeration to continue if device is not present) makes the logic: for (i = 0; i < opp_def_size; i++) { if (!oh || !oh->od) { continue; } opp_def++; } In short, the moment we hit a "Bad OPP", we end up looping the list comparing against the bad opp definition pointer for the rest of the iteration count. Instead, increment opp_def in the for loop itself and allow continue to be used in code without much thought so that we check the next set of OPP definition pointers :) Cc: Steve Sakoman Cc: Tony Lindgren Signed-off-by: Nishanth Menon Signed-off-by: Kevin Hilman Signed-off-by: Ben Hutchings --- arch/arm/mach-omap2/opp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c index de6d464..d8f6dbf 100644 --- a/arch/arm/mach-omap2/opp.c +++ b/arch/arm/mach-omap2/opp.c @@ -53,7 +53,7 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def, omap_table_init = 1; /* Lets now register with OPP library */ - for (i = 0; i < opp_def_size; i++) { + for (i = 0; i < opp_def_size; i++, opp_def++) { struct omap_hwmod *oh; struct device *dev; @@ -86,7 +86,6 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def, __func__, opp_def->freq, opp_def->hwmod_name, i, r); } - opp_def++; } return 0;