Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422942AbWJFUkb (ORCPT ); Fri, 6 Oct 2006 16:40:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422939AbWJFUkb (ORCPT ); Fri, 6 Oct 2006 16:40:31 -0400 Received: from smtp.osdl.org ([65.172.181.4]:5064 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1422942AbWJFUk3 (ORCPT ); Fri, 6 Oct 2006 16:40:29 -0400 Date: Fri, 6 Oct 2006 13:40:20 -0700 From: Andrew Morton To: Amol Lad Cc: linux kernel , Wim Coekaerts Subject: Re: [PATCH 5/5] ioremap balanced with iounmap for drivers/char/watchdog/s3c2410_wdt.c Message-Id: <20061006134020.96edb3ff.akpm@osdl.org> In-Reply-To: <1160110627.19143.88.camel@amol.verismonetworks.com> References: <1160110627.19143.88.camel@amol.verismonetworks.com> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2047 Lines: 55 On Fri, 06 Oct 2006 10:27:07 +0530 Amol Lad wrote: > Signed-off-by: Amol Lad > --- > s3c2410_wdt.c | 5 +++++ > 1 files changed, 5 insertions(+) > --- > diff -uprN -X linux-2.6.19-rc1-orig/Documentation/dontdiff linux-2.6.19-rc1-orig/drivers/char/watchdog/s3c2410_wdt.c linux-2.6.19-rc1/drivers/char/watchdog/s3c2410_wdt.c > --- linux-2.6.19-rc1-orig/drivers/char/watchdog/s3c2410_wdt.c 2006-10-05 14:00:43.000000000 +0530 > +++ linux-2.6.19-rc1/drivers/char/watchdog/s3c2410_wdt.c 2006-10-05 14:50:00.000000000 +0530 > @@ -381,18 +381,21 @@ static int s3c2410wdt_probe(struct platf > res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); > if (res == NULL) { > printk(KERN_INFO PFX "failed to get irq resource\n"); > + iounmap(wdt_base); > return -ENOENT; > } > > ret = request_irq(res->start, s3c2410wdt_irq, 0, pdev->name, pdev); > if (ret != 0) { > printk(KERN_INFO PFX "failed to install irq (%d)\n", ret); > + iounmap(wdt_base); > return ret; > } > > wdt_clock = clk_get(&pdev->dev, "watchdog"); > if (wdt_clock == NULL) { > printk(KERN_INFO PFX "failed to find watchdog clock source\n"); > + iounmap(wdt_base); > return -ENOENT; > } > > @@ -416,6 +419,7 @@ static int s3c2410wdt_probe(struct platf > if (ret) { > printk (KERN_ERR PFX "cannot register miscdev on minor=%d (%d)\n", > WATCHDOG_MINOR, ret); > + iounmap(wdt_base); > return ret; > } > barf. That function has to set the record for the number-of-return-statements-per-line. There are good reasons why we prefer to have a single return point at which to handle all the error unwinding, and the above patch illustrates one of them. Sigh. Oh well, patch looks correct - I'll start spamming Wim with it, thanks. - 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/