Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752897Ab2JGOCs (ORCPT ); Sun, 7 Oct 2012 10:02:48 -0400 Received: from mail-qa0-f46.google.com ([209.85.216.46]:48064 "EHLO mail-qa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750881Ab2JGOCk (ORCPT ); Sun, 7 Oct 2012 10:02:40 -0400 MIME-Version: 1.0 Date: Sun, 7 Oct 2012 22:02:40 +0800 Message-ID: Subject: [PATCH] clk: fix return value check in bcm2835_init_clocks() From: Wei Yongjun To: mturquette@ti.com, swarren@wwwdotorg.org Cc: yongjun_wei@trendmicro.com.cn, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1767 Lines: 54 From: Wei Yongjun In case of error, the function clk_register_fixed_rate() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun --- drivers/clk/clk-bcm2835.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/clk-bcm2835.c b/drivers/clk/clk-bcm2835.c index 67ad16b..b61ee2c 100644 --- a/drivers/clk/clk-bcm2835.c +++ b/drivers/clk/clk-bcm2835.c @@ -33,17 +33,17 @@ void __init bcm2835_init_clocks(void) clk = clk_register_fixed_rate(NULL, "sys_pclk", NULL, CLK_IS_ROOT, 250000000); - if (!clk) + if (IS_ERR(clk)) pr_err("sys_pclk not registered\n"); clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT, 126000000); - if (!clk) + if (IS_ERR(clk)) pr_err("apb_pclk not registered\n"); clk = clk_register_fixed_rate(NULL, "uart0_pclk", NULL, CLK_IS_ROOT, 3000000); - if (!clk) + if (IS_ERR(clk)) pr_err("uart0_pclk not registered\n"); ret = clk_register_clkdev(clk, NULL, "20201000.uart"); if (ret) @@ -51,7 +51,7 @@ void __init bcm2835_init_clocks(void) clk = clk_register_fixed_rate(NULL, "uart1_pclk", NULL, CLK_IS_ROOT, 125000000); - if (!clk) + if (IS_ERR(clk)) pr_err("uart1_pclk not registered\n"); ret = clk_register_clkdev(clk, NULL, "20215000.uart"); if (ret) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/