From 8523ff45672a5c9209ab7459142e37e7cd393e6c Mon Sep 17 00:00:00 2001
From: "johnpol@2ka.mipt.ru" <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 <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
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);
--
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