From 8523ff45672a5c9209ab7459142e37e7cd393e6c Mon Sep 17 00:00:00 2001 From: "johnpol@2ka.mipt.ru" Date: Mon, 18 Apr 2005 21:16:57 -0700 Subject: [PATCH] [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 Signed-off-by: Greg Kroah-Hartman --- drivers/w1/w1.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index fd630cec0e79..8d7821899cc1 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -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);