From patchwork Tue Jan 15 04:58:04 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Prisk X-Patchwork-Id: 1974731 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 3F290DF264 for ; Tue, 15 Jan 2013 05:01:20 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Tuyb7-0002aY-4r; Tue, 15 Jan 2013 04:58:05 +0000 Received: from server.prisktech.co.nz ([115.188.14.127]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Tuyar-0002XW-BX for linux-arm-kernel@lists.infradead.org; Tue, 15 Jan 2013 04:57:51 +0000 Received: from localhost.localdomain (unknown [192.168.0.102]) by server.prisktech.co.nz (Postfix) with ESMTP id 5D27AFC08FD; Tue, 15 Jan 2013 17:57:52 +1300 (NZDT) From: Tony Prisk To: Greg Kroah-Hartman Subject: [PATCH 2/4] serial: vt8500: ioremap'd resource is never freed Date: Tue, 15 Jan 2013 17:58:04 +1300 Message-Id: <1358225886-5686-3-git-send-email-linux@prisktech.co.nz> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1358225886-5686-1-git-send-email-linux@prisktech.co.nz> References: <1358225886-5686-1-git-send-email-linux@prisktech.co.nz> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130114_235749_906996_7F1C0797 X-CRM114-Status: GOOD ( 14.11 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: vt8500-wm8505-linux-kernel@googlegroups.com, Tony Prisk , linux@arm.linux.org.uk, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Memory mapped via ioremap call is never released. Rather than add an iounmap call, change allocation function to devm_request_and_ioremap. Also, change the error on failure for this call to -EBUSY rather than -EADDRNOTAVAIL. Signed-off-by: Tony Prisk --- drivers/tty/serial/vt8500_serial.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c index 4c4a58d..3e76dff 100644 --- a/drivers/tty/serial/vt8500_serial.c +++ b/drivers/tty/serial/vt8500_serial.c @@ -615,9 +615,9 @@ static int vt8500_serial_probe(struct platform_device *pdev) snprintf(vt8500_port->name, sizeof(vt8500_port->name), "VT8500 UART%d", pdev->id); - vt8500_port->uart.membase = ioremap(mmres->start, resource_size(mmres)); + vt8500_port->uart.membase = devm_request_and_ioremap(&pdev->dev, mmres); if (!vt8500_port->uart.membase) { - ret = -ENOMEM; + ret = -EADDRNOTAVAIL; goto err; }