From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030195Ab3BFTuy (ORCPT ); Wed, 6 Feb 2013 14:50:54 -0500 Received: from mail-ob0-f180.google.com ([209.85.214.180]:45564 "EHLO mail-ob0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758254Ab3BFTuq (ORCPT ); Wed, 6 Feb 2013 14:50:46 -0500 From: Tejun Heo To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, Tejun Heo , Arnd Bergmann , Rodolfo Giometti Subject: [PATCH 50/77] misc/c2port: convert to idr_alloc() Date: Wed, 6 Feb 2013 11:40:22 -0800 Message-Id: <1360179649-22465-51-git-send-email-tj@kernel.org> X-Mailer: git-send-email 1.8.1 In-Reply-To: <1360179649-22465-1-git-send-email-tj@kernel.org> References: <1360179649-22465-1-git-send-email-tj@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert to the much saner new idr interface. Only compile tested. Signed-off-by: Tejun Heo Cc: Arnd Bergmann Cc: Rodolfo Giometti --- drivers/misc/c2port/core.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c index f428d86..f32550a 100644 --- a/drivers/misc/c2port/core.c +++ b/drivers/misc/c2port/core.c @@ -885,7 +885,7 @@ struct c2port_device *c2port_device_register(char *name, struct c2port_ops *ops, void *devdata) { struct c2port_device *c2dev; - int id, ret; + int ret; if (unlikely(!ops) || unlikely(!ops->access) || \ unlikely(!ops->c2d_dir) || unlikely(!ops->c2ck_set) || \ @@ -897,22 +897,18 @@ struct c2port_device *c2port_device_register(char *name, if (unlikely(!c2dev)) return ERR_PTR(-ENOMEM); - ret = idr_pre_get(&c2port_idr, GFP_KERNEL); - if (!ret) { - ret = -ENOMEM; - goto error_idr_get_new; - } - + idr_preload(GFP_KERNEL); spin_lock_irq(&c2port_idr_lock); - ret = idr_get_new(&c2port_idr, c2dev, &id); + ret = idr_alloc(&c2port_idr, c2dev, 0, 0, GFP_NOWAIT); spin_unlock_irq(&c2port_idr_lock); + idr_preload_end(); if (ret < 0) - goto error_idr_get_new; - c2dev->id = id; + goto error_idr_alloc; + c2dev->id = ret; c2dev->dev = device_create(c2port_class, NULL, 0, c2dev, - "c2port%d", id); + "c2port%d", c2dev->id); if (unlikely(IS_ERR(c2dev->dev))) { ret = PTR_ERR(c2dev->dev); goto error_device_create; @@ -946,10 +942,10 @@ error_device_create_bin_file: error_device_create: spin_lock_irq(&c2port_idr_lock); - idr_remove(&c2port_idr, id); + idr_remove(&c2port_idr, c2dev->id); spin_unlock_irq(&c2port_idr_lock); -error_idr_get_new: +error_idr_alloc: kfree(c2dev); return ERR_PTR(ret); -- 1.8.1