From: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Date: Wed, 16 Nov 2011 01:54:04 -0300
commit affc9a0d59ac49bd304e2137bd5e4ffdd6fdfa52 upstream.
lirc_serial_probe() must fail if request_irq() returns an error, even if
it isn't EBUSY or EINVAL,
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
---
drivers/staging/lirc/lirc_serial.c | 21 +++++++++------------
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/drivers/staging/lirc/lirc_serial.c b/drivers/staging/lirc/lirc_serial.c
index 4b8fefb954d3..21cbc9ae79c9 100644
--- a/drivers/staging/lirc/lirc_serial.c
+++ b/drivers/staging/lirc/lirc_serial.c
@@ -843,18 +843,15 @@ static int __devinit lirc_serial_probe(struct platform_device *dev)
result = request_irq(irq, irq_handler,
IRQF_DISABLED | (share_irq ? IRQF_SHARED : 0),
LIRC_DRIVER_NAME, (void *)&hardware);
-
- switch (result) {
- case -EBUSY:
- printk(KERN_ERR LIRC_DRIVER_NAME ": IRQ %d busy\n", irq);
- return -EBUSY;
- case -EINVAL:
- printk(KERN_ERR LIRC_DRIVER_NAME
- ": Bad irq number or handler\n");
- return -EINVAL;
- default:
- break;
- };
+ if (result < 0) {
+ if (result == -EBUSY)
+ printk(KERN_ERR LIRC_DRIVER_NAME ": IRQ %d busy\n",
+ irq);
+ else if (result == -EINVAL)
+ printk(KERN_ERR LIRC_DRIVER_NAME
+ ": Bad irq number or handler\n");
+ return result;
+ }
/* Reserve io region. */
/*
--
1.7.9.2
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