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Commit 8523ff45 authored by Evgeniy Polyakov's avatar Evgeniy Polyakov Committed by Greg KH
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[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: default avatarEvgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent c0698f2f

drivers/w1/w1.c

+5 −4
Original line number Diff line number Diff line
@@ -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);