From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758662Ab2ILNDJ (ORCPT ); Wed, 12 Sep 2012 09:03:09 -0400 Received: from smtp4.mundo-r.com ([212.51.32.151]:15608 "EHLO smtp4.mundo-r.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758013Ab2ILMzy (ORCPT ); Wed, 12 Sep 2012 08:55:54 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqECACCFUFBbdWObgWdsb2JhbABFu0AiAQEWJieCIAEBBSdSECAxVwYTiBG8YpFSA5Vfkwc X-IronPort-AV: E=Sophos;i="4.80,410,1344204000"; d="scan'208";a="950511757" From: Samuel Iglesias Gonsalvez To: Greg Kroah-Hartman Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, industrypack-devel@lists.sourceforge.net, Jens Taprogge , Samuel Iglesias Gonsalvez Subject: [PATCH 12/24] Staging: ipack/bridges/tpci200: Clean up interrupt handling. Date: Wed, 12 Sep 2012 14:55:34 +0200 Message-Id: <1347454546-23236-12-git-send-email-siglesias@igalia.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1347454546-23236-1-git-send-email-siglesias@igalia.com> References: <1347454546-23236-1-git-send-email-siglesias@igalia.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jens Taprogge Previously the return value from tpci200_interrupt was not quite correct if a slot had caused an interrupt but no handler was instellalled: IRQ_NONE was returned. However in this case we react to the interrupt by disabling the IPack device interrupt. Basically there are two cases the code now distinguishes: - The tpci200 has raised an interrupt. We handle it and return IRQ_HANDLED. - Our device did not raise an interrupt. We return IRQ_NONE. Signed-off-by: Jens Taprogge Signed-off-by: Samuel Iglesias Gonsalvez --- drivers/staging/ipack/bridges/tpci200.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c index b1ddbe3..0cbaf3a 100644 --- a/drivers/staging/ipack/bridges/tpci200.c +++ b/drivers/staging/ipack/bridges/tpci200.c @@ -116,7 +116,6 @@ static irqreturn_t tpci200_interrupt(int irq, void *dev_id) struct tpci200_board *tpci200 = (struct tpci200_board *) dev_id; int i; unsigned short status_reg; - irqreturn_t ret = IRQ_NONE; struct slot_irq *slot_irq; /* Read status register */ @@ -130,7 +129,7 @@ static irqreturn_t tpci200_interrupt(int irq, void *dev_id) continue; slot_irq = rcu_dereference(tpci200->slots[i].irq); if (slot_irq) { - ret = tpci200_slot_irq(slot_irq); + tpci200_slot_irq(slot_irq); } else { dev_info(&tpci200->info->pdev->dev, "No registered ISR for slot [%d:%d]!. IRQ will be disabled.\n", @@ -141,9 +140,11 @@ static irqreturn_t tpci200_interrupt(int irq, void *dev_id) } } rcu_read_unlock(); - } - return ret; + return IRQ_HANDLED; + } else { + return IRQ_NONE; + } } static int tpci200_register(struct tpci200_board *tpci200) -- 1.7.10.4