diff options
| author | Gertjan van Wingerde <gwingerde@gmail.com> | 2009-11-14 22:20:36 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-11-16 22:17:12 +0300 |
| commit | 31a4cf1f22677ba1ea90be055bc20aac25b8e7c4 (patch) | |
| tree | 8432c39f519d86bff3e2793db7478cd31f59c6c6 /drivers/net/wireless/rt2x00/rt2800lib.h | |
| parent | 16475b095a9c952f16e626c142b30bc95cfeadb3 (diff) | |
| download | linux-31a4cf1f22677ba1ea90be055bc20aac25b8e7c4.tar.xz | |
rt2x00: Fix BUG on rt2800usb when trying to read eFuse EEPROM.
Current tree hits a BUG_ON in rt2x00_regbusy_read, because the eFuse EEPROM
reading code of rt2800lib uses the function without the csr_mutex locked.
Fix this by locking the csr_mutex for the of the EEPROM reading cycly and
using the _lock variants of the register reading and writing functions.
This also introcudes the register_read_lock function pointer in the
rt2800_ops structure.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.h')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.h b/drivers/net/wireless/rt2x00/rt2800lib.h index 7c790118999b..535ce22f2ac8 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.h +++ b/drivers/net/wireless/rt2x00/rt2800lib.h @@ -23,6 +23,8 @@ struct rt2800_ops { void (*register_read)(struct rt2x00_dev *rt2x00dev, const unsigned int offset, u32 *value); + void (*register_read_lock)(struct rt2x00_dev *rt2x00dev, + const unsigned int offset, u32 *value); void (*register_write)(struct rt2x00_dev *rt2x00dev, const unsigned int offset, u32 value); void (*register_write_lock)(struct rt2x00_dev *rt2x00dev, @@ -49,6 +51,15 @@ static inline void rt2800_register_read(struct rt2x00_dev *rt2x00dev, rt2800ops->register_read(rt2x00dev, offset, value); } +static inline void rt2800_register_read_lock(struct rt2x00_dev *rt2x00dev, + const unsigned int offset, + u32 *value) +{ + const struct rt2800_ops *rt2800ops = rt2x00dev->priv; + + rt2800ops->register_read_lock(rt2x00dev, offset, value); +} + static inline void rt2800_register_write(struct rt2x00_dev *rt2x00dev, const unsigned int offset, u32 value) |