diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-04-11 08:08:27 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-25 19:51:09 (GMT) |
| commit | b15bae9faecfb714cbf0c4585cd46b32d0a40e5a (patch) | |
| tree | beb4146aceea194d54c54f0d39dc41adf5abbb87 | |
| parent | d7e0ec47be2ac4c26c4a2ed44e9541d790e7bb94 (diff) | |
| download | linux-fsl-qoriq-b15bae9faecfb714cbf0c4585cd46b32d0a40e5a.tar.xz | |
can: mcp251x: add missing IRQF_ONESHOT to request_threaded_irq
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>
| -rw-r--r-- | drivers/net/can/mcp251x.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c index 5eaf47b..42b6d69 100644 --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -922,6 +922,7 @@ 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); @@ -938,9 +939,14 @@ 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) |