From 4847cc073adb91695980906ae557957460fda453 Mon Sep 17 00:00:00 2001 From: Federico Vaga Date: Thu, 3 Jul 2014 10:53:58 +0200 Subject: [PATCH] ipoctal: request_irq after configuration The request for an IRQ handler must be done after whole configuration. This was not the case for this driver which request the IRQ in the middle of the configuration. Sometimes, it happens that something is not completely configured, we recieve an interrupt thus we stumble into troubles in the IRQ handler. Signed-off-by: Federico Vaga Acked-by: Samuel Iglesias Gonsalvez Signed-off-by: Greg Kroah-Hartman --- drivers/ipack/devices/ipoctal.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index 69687f156999..e41bef048c23 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c @@ -323,13 +323,6 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr, &block_regs[i].w.imr); } - /* - * IP-OCTAL has different addresses to copy its IRQ vector. - * Depending of the carrier these addresses are accesible or not. - * More info in the datasheet. - */ - ipoctal->dev->bus->ops->request_irq(ipoctal->dev, - ipoctal_irq_handler, ipoctal); /* Dummy write */ iowrite8(1, ipoctal->mem8_space + 1); @@ -390,6 +383,14 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr, dev_set_drvdata(tty_dev, channel); } + /* + * IP-OCTAL has different addresses to copy its IRQ vector. + * Depending of the carrier these addresses are accesible or not. + * More info in the datasheet. + */ + ipoctal->dev->bus->ops->request_irq(ipoctal->dev, + ipoctal_irq_handler, ipoctal); + return 0; }