From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Walmsley Subject: [PATCH 17/22] OMAP2/3 clock: omap2_clk_enable(): refactor usecount check Date: Mon, 22 Dec 2008 23:38:42 -0700 Message-ID: <20081223063841.8542.22498.stgit@localhost.localdomain> References: <20081223063709.8542.82882.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from utopia.booyaka.com ([72.9.107.138]:52928 "EHLO utopia.booyaka.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753195AbYLWGj4 (ORCPT ); Tue, 23 Dec 2008 01:39:56 -0500 In-Reply-To: <20081223063709.8542.82882.stgit@localhost.localdomain> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Cc: Paul Walmsley Clean up omap2_clk_enable() by moving most of the function body out of the usecount check. Should result in no functional change. Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock.c | 31 ++++++++++++++++--------------- 1 files changed, 16 insertions(+), 15 deletions(-) diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index cdad2ae..ab133b2 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -491,26 +491,27 @@ int omap2_clk_enable(struct clk *clk) { int ret = 0; - if (clk->usecount++ == 0) { - if (clk->parent) - ret = omap2_clk_enable(clk->parent); + if (++clk->usecount > 1) + return 0; - if (ret != 0) { - clk->usecount--; - return ret; - } + if (clk->parent) + ret = omap2_clk_enable(clk->parent); + + if (ret != 0) { + clk->usecount--; + return ret; + } - omap2_clkdm_clk_enable(clk->clkdm.ptr, clk); + omap2_clkdm_clk_enable(clk->clkdm.ptr, clk); - ret = _omap2_clk_enable(clk); + ret = _omap2_clk_enable(clk); - if (ret != 0) { - omap2_clkdm_clk_disable(clk->clkdm.ptr, clk); + if (ret != 0) { + omap2_clkdm_clk_disable(clk->clkdm.ptr, clk); - if (clk->parent) { - omap2_clk_disable(clk->parent); - clk->usecount--; - } + if (clk->parent) { + omap2_clk_disable(clk->parent); + clk->usecount--; } }