[PATCH] w1: real fix for big endian machines.
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>
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index fd630ce..8d78218 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -522,10 +522,11 @@
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);