From db388d6460ffa53b3b38429da6f70a913f89b048 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Thu, 11 Apr 2013 10:08:27 +0200 Subject: [PATCH] can: mcp251x: add missing IRQF_ONESHOT to request_threaded_irq 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. Cc: linux-stable # >= v3.5 Reported-by: Mylene Josserand Tested-by: Mylene Josserand Signed-off-by: Marc Kleine-Budde --- drivers/net/can/mcp251x.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c index f32b9fc6a983..9aa0c64c33c8 100644 --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -929,6 +929,7 @@ static int mcp251x_open(struct net_device *net) 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); @@ -945,9 +946,14 @@ static int mcp251x_open(struct net_device *net) 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) -- 2.20.1