diff options
Diffstat (limited to 'drivers/net/wireless/b43legacy/rfkill.c')
| -rw-r--r-- | drivers/net/wireless/b43legacy/rfkill.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43legacy/rfkill.c b/drivers/net/wireless/b43legacy/rfkill.c index 8783022db11..c4559bcbc70 100644 --- a/drivers/net/wireless/b43legacy/rfkill.c +++ b/drivers/net/wireless/b43legacy/rfkill.c @@ -3,7 +3,7 @@ Broadcom B43 wireless driver RFKILL support - Copyright (c) 2007 Michael Buesch <mb@bu3sch.de> + Copyright (c) 2007 Michael Buesch <m@bues.ch> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -29,11 +29,18 @@ /* Returns TRUE, if the radio is enabled in hardware. */ bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev) { - if (dev->phy.rev >= 3) { + if (dev->dev->id.revision >= 3) { if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI) & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK)) return 1; } else { + /* 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 (b43legacy_status(dev) < B43legacy_STAT_STARTED) + return 1; if (b43legacy_read16(dev, B43legacy_MMIO_RADIO_HWENABLED_LO) & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK) return 1; |