diff options
Diffstat (limited to 'drivers/pnp/pnpacpi/rsparser.c')
| -rw-r--r-- | drivers/pnp/pnpacpi/rsparser.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index 3aaf406b67b..851c773feae 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -455,9 +455,16 @@ static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev, return; bitmap_zero(map.bits, PNP_IRQ_NR); - for (i = 0; i < p->interrupt_count; i++) - if (p->interrupts[i]) - __set_bit(p->interrupts[i], map.bits); + for (i = 0; i < p->interrupt_count; i++) { + if (p->interrupts[i]) { + if (p->interrupts[i] < PNP_IRQ_NR) + __set_bit(p->interrupts[i], map.bits); + else + dev_err(&dev->dev, "ignoring IRQ %d option " + "(too large for %d entry bitmap)\n", + p->interrupts[i], PNP_IRQ_NR); + } + } flags = irq_flags(p->triggering, p->polarity, p->sharable); pnp_register_irq_resource(dev, option, &map, flags); |