From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mylene Josserand , Marc Kleine-Budde Subject: [ 06/42] can: mcp251x: add missing IRQF_ONESHOT to request_threaded_irq Date: Tue, 23 Apr 2013 14:52:04 -0700 Message-Id: <20130423215206.203367324@linuxfoundation.org> In-Reply-To: <20130423215205.523980967@linuxfoundation.org> References: <20130423215205.523980967@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Marc Kleine-Budde commit db388d6460ffa53b3b38429da6f70a913f89b048 upstream. Since commit: 1c6c695 genirq: Reject bogus threaded irq requests threaded irqs must provide a primary handler or set the IRQF_ONESHOT flag. Since the mcp251x driver doesn't make use of a primary handler set the IRQF_ONESHOT flag. Reported-by: Mylene Josserand Tested-by: Mylene Josserand Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/mcp251x.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -922,6 +922,7 @@ static int mcp251x_open(struct net_devic struct mcp251x_priv *priv = netdev_priv(net); struct spi_device *spi = priv->spi; struct mcp251x_platform_data *pdata = spi->dev.platform_data; + unsigned long flags; int ret; ret = open_candev(net); @@ -938,9 +939,14 @@ static int mcp251x_open(struct net_devic priv->tx_skb = NULL; priv->tx_len = 0; + flags = IRQF_ONESHOT; + if (pdata->irq_flags) + flags |= pdata->irq_flags; + else + flags |= IRQF_TRIGGER_FALLING; + ret = request_threaded_irq(spi->irq, NULL, mcp251x_can_ist, - pdata->irq_flags ? pdata->irq_flags : IRQF_TRIGGER_FALLING, - DEVICE_NAME, priv); + flags, DEVICE_NAME, priv); if (ret) { dev_err(&spi->dev, "failed to acquire irq %d\n", spi->irq); if (pdata->transceiver_enable)