diff options
author | Andy Voltz <andy.voltz@timesys.com> | 2010-11-15 16:00:38 -0500 |
---|---|---|
committer | Andy Voltz <andy.voltz@timesys.com> | 2010-11-17 11:30:34 -0500 |
commit | 2e0ae4bf137e282e825b27b02eb46f86c59d004e (patch) | |
tree | 7c2534acd757ca414f02c5b983ee67eb2b2493c6 /drivers/net/wireless/b43/rfkill.c | |
parent | 22763c5cf3690a681551162c15d34d935308c8d7 (diff) |
Bump Linux kernel to 2.6.32.25
Diffstat (limited to 'drivers/net/wireless/b43/rfkill.c')
-rw-r--r-- | drivers/net/wireless/b43/rfkill.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/rfkill.c b/drivers/net/wireless/b43/rfkill.c index ffdce6f3c909..78016ae21c50 100644 --- a/drivers/net/wireless/b43/rfkill.c +++ b/drivers/net/wireless/b43/rfkill.c @@ -33,8 +33,14 @@ bool b43_is_hw_radio_enabled(struct b43_wldev *dev) & B43_MMIO_RADIO_HWENABLED_HI_MASK)) return 1; } else { - if (b43_status(dev) >= B43_STAT_STARTED && - b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO) + /* 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) + return 1; + if (b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO) & B43_MMIO_RADIO_HWENABLED_LO_MASK) return 1; } |