redonkable/remarkable-linux
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[PATCH] w1: real fix for big endian machines.

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Real fix for big endian machines - crc must be calculated
using little endian byte order.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
johnpol@2ka.mipt.ru 2005-04-18 21:16:57 -07:00 committed by Greg KH
parent c0698f2f6e
commit 8523ff4567
1 changed files with 5 additions and 4 deletions
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9
drivers/w1/w1.c
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@ -522,10 +522,11 @@ void w1_slave_found(unsigned long data, u64 rn)
slave_count++;
}
if (slave_count == dev->slave_count && rn ) {
tmp = cpu_to_le64(rn);
if(((rn >> 56) & 0xff) == w1_calc_crc8((u8 *)&tmp, 7))
w1_attach_slave_device(dev, (struct w1_reg_num *) &rn);
rn = cpu_to_le64(rn);
if (slave_count == dev->slave_count &&
rn && ((le64_to_cpu(rn) >> 56) & 0xff) == w1_calc_crc8((u8 *)&rn, 7)) {
w1_attach_slave_device(dev, tmp);
}
atomic_dec(&dev->refcnt);