===================================================================
@@ -33,9 +33,16 @@ bool b43_is_hw_radio_enabled(struct b43_
& B43_MMIO_RADIO_HWENABLED_HI_MASK))
return 1;
} else {
- if (b43_status(dev) >= B43_STAT_STARTED &&
- b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO)
- & B43_MMIO_RADIO_HWENABLED_LO_MASK)
+ /* To prevent CPU fault on PPC, do not read a register
+ * unless the interface is started; however, on resume
+ * for hibernation, this routine is entered early. When
+ * that happens, unconditionally return TRUE.
+ */
+ if (b43_status(dev) >= B43_STAT_STARTED) {
+ if (b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO)
+ & B43_MMIO_RADIO_HWENABLED_LO_MASK)
+ return 1;
+ } else
return 1;
}
return 0;