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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 <stable@vger.kernel.org> # >= v3.5
Reported-by: Mylene Josserand <Mylene.Josserand@navocap.com>
Tested-by: Mylene Josserand <Mylene.Josserand@navocap.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
hifive-unleashed-5.1
Marc Kleine-Budde 2013-04-11 10:08:27 +02:00
parent 50bceae9bd
commit db388d6460
1 changed files with 8 additions and 2 deletions
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10
drivers/net/can/mcp251x.c
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@ -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)