diff options
| author | Evgeniy Polyakov <johnpol@2ka.mipt.ru> | 2005-06-30 22:52:38 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-07-11 14:10:37 -0700 |
| commit | 0e65f82814e9828d3ff54988de9e7c0b36794daa (patch) | |
| tree | a4d5dfb9ab550160a453c6266fe67d18ace76857 /drivers | |
| parent | 80efa8c72006a1c04004f8fb07b22073348e4bf2 (diff) | |
[PATCH] w1: fix CRC calculation on bigendian platforms.
In the 2.6.13-rc1 code the "rn" structure is in the wrong-endianness
when passed to w1_attach_slave_device(). This causes problems like the
family and crc being swapped around.
Signed-off-by: Roger Blofeld <blofeldus@yahoo.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/w1/w1.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index 312cf3220f1..8a9c4282250 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -516,6 +516,7 @@ static void w1_slave_found(unsigned long data, u64 rn) struct w1_reg_num *tmp; int family_found = 0; struct w1_master *dev; + u64 rn_le = cpu_to_le64(rn); dev = w1_search_master(data); if (!dev) { @@ -544,10 +545,8 @@ static void w1_slave_found(unsigned long data, u64 rn) slave_count++; } - rn = cpu_to_le64(rn); - if (slave_count == dev->slave_count && - rn && ((le64_to_cpu(rn) >> 56) & 0xff) == w1_calc_crc8((u8 *)&rn, 7)) { + rn && ((rn >> 56) & 0xff) == w1_calc_crc8((u8 *)&rn_le, 7)) { w1_attach_slave_device(dev, tmp); } |