From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753089Ab2G3K0E (ORCPT ); Mon, 30 Jul 2012 06:26:04 -0400 Received: from mail-yw0-f46.google.com ([209.85.213.46]:49721 "EHLO mail-yw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751728Ab2G3K0B (ORCPT ); Mon, 30 Jul 2012 06:26:01 -0400 From: Devendra Naga To: Anton Vorontsov , David Woodhouse , ramakrishna.pallala@intel.com, linux-kernel@vger.kernel.org Cc: Devendra Naga Subject: [PATCH V2 2/2] lp8727_charger: unregister power supply at error path of lp8727_register_psy Date: Mon, 30 Jul 2012 16:10:46 +0545 Message-Id: <1343643946-12815-1-git-send-email-develkernel412222@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org if usb power supply registration fails, we wont unregister the ac power supply if battery power supply registration fails, we wont unregister the usb, and ac supply, take care of those things and also no need of goto -err_mem: at the fail case of kzalloc simply can have return -ENOMEM Signed-off-by: Devendra Naga --- Changes since V2: * fix the comments from the Ramakrishna (ramakrishna.pallala@intel.com) quoting his comments: > if (power_supply_register(pchg->dev, &psy->usb)) > - goto err_psy; > + goto err_psy_ac; "err_psy_ac" label name is confusing. Why can't you use err_psy_usb > if (power_supply_register(pchg->dev, &psy->batt)) > - goto err_psy; > + goto err_psy_usb; Same here, why don't you use err_psy_batt drivers/power/lp8727_charger.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c index 6c0e0f9..8fb1c0f 100644 --- a/drivers/power/lp8727_charger.c +++ b/drivers/power/lp8727_charger.c @@ -362,7 +362,7 @@ static int lp8727_register_psy(struct lp8727_chg *pchg) psy = kzalloc(sizeof(*psy), GFP_KERNEL); if (!psy) - goto err_mem; + return -ENOMEM; pchg->psy = psy; @@ -386,7 +386,7 @@ static int lp8727_register_psy(struct lp8727_chg *pchg) psy->usb.num_supplicants = ARRAY_SIZE(battery_supplied_to); if (power_supply_register(pchg->dev, &psy->usb)) - goto err_psy; + goto err_psy_usb; psy->batt.name = "main_batt"; psy->batt.type = POWER_SUPPLY_TYPE_BATTERY; @@ -396,12 +396,14 @@ static int lp8727_register_psy(struct lp8727_chg *pchg) psy->batt.external_power_changed = lp8727_charger_changed; if (power_supply_register(pchg->dev, &psy->batt)) - goto err_psy; + goto err_psy_batt; return 0; -err_mem: - return -ENOMEM; +err_psy_batt: + power_supply_unregister(&psy->usb); +err_psy_usb: + power_supply_unregister(&psy->ac); err_psy: kfree(psy); return -EPERM; -- 1.7.9.5