Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [ 06/42] can: mcp251x: add missing IRQF_ONESHOT to request_threaded_irq | Date | Tue, 23 Apr 2013 14:52:04 -0700 |
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3.8-stable review patch. If anyone has any objections, please let me know.
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From: Marc Kleine-Budde <mkl@pengutronix.de>
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 <Mylene.Josserand@navocap.com> Tested-by: Mylene Josserand <Mylene.Josserand@navocap.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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)
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