From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Chan Subject: [PATCH] [ARM] omap: resource: Make resource_refresh() thread safe. Date: Thu, 3 Sep 2009 16:18:07 -0700 Message-ID: <1252019887-4463-1-git-send-email-mike@android.com> Return-path: Received: from smtp-out.google.com ([216.239.33.17]:46714 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756553AbZICXSL (ORCPT ); Thu, 3 Sep 2009 19:18:11 -0400 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Cc: khilman@deeprootsystems.com, Mike Chan Need to lock the res_mutex when traversing the res_list. Signed-off-by: Mike Chan --- arch/arm/plat-omap/resource.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/arm/plat-omap/resource.c b/arch/arm/plat-omap/resource.c index 25072cd..4631912 100644 --- a/arch/arm/plat-omap/resource.c +++ b/arch/arm/plat-omap/resource.c @@ -234,11 +234,13 @@ int resource_refresh(void) struct shared_resource *resp = NULL; int ret = 0; + down(&res_mutex); list_for_each_entry(resp, &res_list, node) { ret = update_resource_level(resp); if (ret) break; } + up(&res_mutex); return ret; } -- 1.5.4.5