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-rw-r--r--drivers/char/rtc.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 66a7385bc34a..2eb53bea1866 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -958,6 +958,7 @@ static int __init rtc_init(void)
}
}
#endif
+ rtc_has_irq = 0;
printk(KERN_ERR "rtc_init: no PC rtc found\n");
return -EIO;
@@ -972,6 +973,7 @@ found:
* PCI Slot 2 INTA# (and some INTx# in Slot 1).
*/
if (request_irq(rtc_irq, rtc_interrupt, IRQF_SHARED, "rtc", (void *)&rtc_port)) {
+ rtc_has_irq = 0;
printk(KERN_ERR "rtc: cannot register IRQ %d\n", rtc_irq);
return -EIO;
}
@@ -982,6 +984,9 @@ no_irq:
else
r = request_mem_region(RTC_PORT(0), RTC_IO_EXTENT, "rtc");
if (!r) {
+#ifdef RTC_IRQ
+ rtc_has_irq = 0;
+#endif
printk(KERN_ERR "rtc: I/O resource %lx is not free.\n",
(long)(RTC_PORT(0)));
return -EIO;
@@ -996,6 +1001,7 @@ no_irq:
if(request_irq(RTC_IRQ, rtc_int_handler_ptr, IRQF_DISABLED, "rtc", NULL)) {
/* Yeah right, seeing as irq 8 doesn't even hit the bus. */
+ rtc_has_irq = 0;
printk(KERN_ERR "rtc: IRQ %d is not free.\n", RTC_IRQ);
if (RTC_IOMAPPED)
release_region(RTC_PORT(0), RTC_IO_EXTENT);
@@ -1012,6 +1018,7 @@ no_irq:
if (misc_register(&rtc_dev)) {
#ifdef RTC_IRQ
free_irq(RTC_IRQ, NULL);
+ rtc_has_irq = 0;
#endif
release_region(RTC_PORT(0), RTC_IO_EXTENT);
return -ENODEV;
@@ -1021,6 +1028,7 @@ no_irq:
if (!ent) {
#ifdef RTC_IRQ
free_irq(RTC_IRQ, NULL);
+ rtc_has_irq = 0;
#endif
release_region(RTC_PORT(0), RTC_IO_EXTENT);
misc_deregister(&rtc_dev);