From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxim Levitsky Subject: [PATCH 03/13] IR: replace spinlock with mutex. Date: Fri, 30 Jul 2010 14:38:43 +0300 Message-ID: <1280489933-20865-4-git-send-email-maximlevitsky@gmail.com> References: <1280489933-20865-1-git-send-email-maximlevitsky@gmail.com> Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:45907 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758365Ab0G3LjG (ORCPT ); Fri, 30 Jul 2010 07:39:06 -0400 In-Reply-To: <1280489933-20865-1-git-send-email-maximlevitsky@gmail.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: lirc-list@lists.sourceforge.net Cc: Jarod Wilson , linux-input@vger.kernel.org, linux-media@vger.kernel.org, Mauro Carvalho Chehab , Christoph Bartelmus , Maxim Levitsky Some handlers (lirc for example) allocates memory on initialization, doing so in atomic context is cumbersome. Fixes warning about sleeping function in atomic context. Signed-off-by: Maxim Levitsky --- drivers/media/IR/ir-raw-event.c | 28 ++++++++++++++-------------- 1 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/media/IR/ir-raw-event.c b/drivers/media/IR/ir-raw-event.c index 51f65da..9d5c029 100644 --- a/drivers/media/IR/ir-raw-event.c +++ b/drivers/media/IR/ir-raw-event.c @@ -13,7 +13,7 @@ */ #include -#include +#include #include #include "ir-core-priv.h" @@ -24,7 +24,7 @@ static LIST_HEAD(ir_raw_client_list); /* Used to handle IR raw handler extensions */ -static DEFINE_SPINLOCK(ir_raw_handler_lock); +static DEFINE_MUTEX(ir_raw_handler_lock); static LIST_HEAD(ir_raw_handler_list); static u64 available_protocols; @@ -41,10 +41,10 @@ static void ir_raw_event_work(struct work_struct *work) container_of(work, struct ir_raw_event_ctrl, rx_work); while (kfifo_out(&raw->kfifo, &ev, sizeof(ev)) == sizeof(ev)) { - spin_lock(&ir_raw_handler_lock); + mutex_lock(&ir_raw_handler_lock); list_for_each_entry(handler, &ir_raw_handler_list, list) handler->decode(raw->input_dev, ev); - spin_unlock(&ir_raw_handler_lock); + mutex_unlock(&ir_raw_handler_lock); raw->prev_ev = ev; } } @@ -150,9 +150,9 @@ u64 ir_raw_get_allowed_protocols() { u64 protocols; - spin_lock(&ir_raw_handler_lock); + mutex_lock(&ir_raw_handler_lock); protocols = available_protocols; - spin_unlock(&ir_raw_handler_lock); + mutex_unlock(&ir_raw_handler_lock); return protocols; } @@ -180,12 +180,12 @@ int ir_raw_event_register(struct input_dev *input_dev) return rc; } - spin_lock(&ir_raw_handler_lock); + mutex_lock(&ir_raw_handler_lock); list_add_tail(&ir->raw->list, &ir_raw_client_list); list_for_each_entry(handler, &ir_raw_handler_list, list) if (handler->raw_register) handler->raw_register(ir->raw->input_dev); - spin_unlock(&ir_raw_handler_lock); + mutex_unlock(&ir_raw_handler_lock); return 0; } @@ -200,12 +200,12 @@ void ir_raw_event_unregister(struct input_dev *input_dev) cancel_work_sync(&ir->raw->rx_work); - spin_lock(&ir_raw_handler_lock); + mutex_lock(&ir_raw_handler_lock); list_del(&ir->raw->list); list_for_each_entry(handler, &ir_raw_handler_list, list) if (handler->raw_unregister) handler->raw_unregister(ir->raw->input_dev); - spin_unlock(&ir_raw_handler_lock); + mutex_unlock(&ir_raw_handler_lock); kfifo_free(&ir->raw->kfifo); kfree(ir->raw); @@ -220,13 +220,13 @@ int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler) { struct ir_raw_event_ctrl *raw; - spin_lock(&ir_raw_handler_lock); + mutex_lock(&ir_raw_handler_lock); list_add_tail(&ir_raw_handler->list, &ir_raw_handler_list); if (ir_raw_handler->raw_register) list_for_each_entry(raw, &ir_raw_client_list, list) ir_raw_handler->raw_register(raw->input_dev); available_protocols |= ir_raw_handler->protocols; - spin_unlock(&ir_raw_handler_lock); + mutex_unlock(&ir_raw_handler_lock); return 0; } @@ -236,13 +236,13 @@ void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler) { struct ir_raw_event_ctrl *raw; - spin_lock(&ir_raw_handler_lock); + mutex_lock(&ir_raw_handler_lock); list_del(&ir_raw_handler->list); if (ir_raw_handler->raw_unregister) list_for_each_entry(raw, &ir_raw_client_list, list) ir_raw_handler->raw_unregister(raw->input_dev); available_protocols &= ~ir_raw_handler->protocols; - spin_unlock(&ir_raw_handler_lock); + mutex_unlock(&ir_raw_handler_lock); } EXPORT_SYMBOL(ir_raw_handler_unregister); -- 1.7.0.4