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-rw-r--r--drivers/rtc/rtc-cmos.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 6085261aa2c1..e24ea82dc35b 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -641,9 +641,16 @@ cmos_pnp_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
641 * drivers can't provide shutdown() methods to disable IRQs. 641 * drivers can't provide shutdown() methods to disable IRQs.
642 * Or better yet, fix PNP to allow those methods... 642 * Or better yet, fix PNP to allow those methods...
643 */ 643 */
644 return cmos_do_probe(&pnp->dev, 644 if (pnp_port_start(pnp,0) == 0x70 && !pnp_irq_valid(pnp,0))
645 &pnp->res.port_resource[0], 645 /* Some machines contain a PNP entry for the RTC, but
646 pnp->res.irq_resource[0].start); 646 * don't define the IRQ. It should always be safe to
647 * hardcode it in these cases
648 */
649 return cmos_do_probe(&pnp->dev, &pnp->res.port_resource[0], 8);
650 else
651 return cmos_do_probe(&pnp->dev,
652 &pnp->res.port_resource[0],
653 pnp->res.irq_resource[0].start);
647} 654}
648 655
649static void __exit cmos_pnp_remove(struct pnp_dev *pnp) 656static void __exit cmos_pnp_remove(struct pnp_dev *pnp)