From patchwork Wed Jul 25 09:35:16 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shubhrajyoti Datta X-Patchwork-Id: 1236071 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id EEBFD4025E for ; Wed, 25 Jul 2012 09:35:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752319Ab2GYJfW (ORCPT ); Wed, 25 Jul 2012 05:35:22 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:39840 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751960Ab2GYJfV (ORCPT ); Wed, 25 Jul 2012 05:35:21 -0400 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id q6P9ZJEh003710; Wed, 25 Jul 2012 04:35:20 -0500 Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id q6P9ZIH4005140; Wed, 25 Jul 2012 15:05:18 +0530 (IST) Received: from dbdp33.itg.ti.com (172.24.170.252) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Wed, 25 Jul 2012 15:05:18 +0530 Received: from ula0393217.india.ti.com (smtpvbd.itg.ti.com [172.24.170.250]) by dbdp33.itg.ti.com (8.13.8/8.13.8) with ESMTP id q6P9ZIPS011616; Wed, 25 Jul 2012 15:05:18 +0530 From: Shubhrajyoti D To: CC: , , Shubhrajyoti D Subject: [PATCH] Input: omap4-keypad: Fix the probe error handling Date: Wed, 25 Jul 2012 15:05:16 +0530 Message-ID: <1343208916-19149-1-git-send-email-shubhrajyoti@ti.com> X-Mailer: git-send-email 1.7.5.4 MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org - pm_runtime_disable call is missed in some of the error cases fix the same. - In the error path pm_runtime_put_sync is called after pm_runtime_disable fix the same. - keypad_data->keymap free was missed in one of the error path fix it. Also while at it call pm_runtime_put_sync after the register access in probe instead of waiting for input registration etc. Signed-off-by: Shubhrajyoti D --- drivers/input/keyboard/omap4-keypad.c | 16 +++++++--------- 1 files changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c index c05f98c..17efede 100644 --- a/drivers/input/keyboard/omap4-keypad.c +++ b/drivers/input/keyboard/omap4-keypad.c @@ -310,6 +310,7 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev) goto err_unmap; } rev = __raw_readl(keypad_data->base + OMAP4_KBD_REVISION); + pm_runtime_put_sync(&pdev->dev); rev &= 0x03 << 30; rev >>= 30; switch (rev) { @@ -325,14 +326,14 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Keypad reports unsupported revision %d", rev); error = -EINVAL; - goto err_pm_put_sync; + goto err_unmap; } /* input device allocation */ keypad_data->input = input_dev = input_allocate_device(); if (!input_dev) { error = -ENOMEM; - goto err_pm_put_sync; + goto err_unmap; } input_dev->name = pdev->name; @@ -374,30 +375,27 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev) "omap4-keypad", keypad_data); if (error) { dev_err(&pdev->dev, "failed to register interrupt\n"); - goto err_free_input; + goto err_free_keymap; } - pm_runtime_put_sync(&pdev->dev); error = input_register_device(keypad_data->input); if (error < 0) { dev_err(&pdev->dev, "failed to register input device\n"); - goto err_pm_disable; + goto err_free_irq; } platform_set_drvdata(pdev, keypad_data); return 0; -err_pm_disable: - pm_runtime_disable(&pdev->dev); +err_free_irq: free_irq(keypad_data->irq, keypad_data); err_free_keymap: kfree(keypad_data->keymap); err_free_input: input_free_device(input_dev); -err_pm_put_sync: - pm_runtime_put_sync(&pdev->dev); err_unmap: + pm_runtime_disable(&pdev->dev); iounmap(keypad_data->base); err_release_mem: release_mem_region(res->start, resource_size(res));