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tty: ipwireless: Fix probable mask then right shift defects 

Precedence of & and >> is not the same and is not left to right.
shift has higher precedence and should be done after the mask.

Add parentheses around the masks.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: David Sterba <dsterba@suse.cz>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Joe Perches 2014-10-26 22:25:05 -07:00 committed by Greg Kroah-Hartman
parent f0fd1b73b0
commit 7e041abf79
1 changed files with 6 additions and 6 deletions
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12
drivers/tty/ipwireless/hardware.c
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@ -378,9 +378,9 @@ static void swap_packet_bitfield_to_le(unsigned char *data)
/*
* transform bits from aa.bbb.ccc to ccc.bbb.aa
*/
ret |= tmp & 0xc0 >> 6;
ret |= tmp & 0x38 >> 1;
ret |= tmp & 0x07 << 5;
ret |= (tmp & 0xc0) >> 6;
ret |= (tmp & 0x38) >> 1;
ret |= (tmp & 0x07) << 5;
*data = ret & 0xff;
#endif
}
@ -393,9 +393,9 @@ static void swap_packet_bitfield_from_le(unsigned char *data)
/*
* transform bits from ccc.bbb.aa to aa.bbb.ccc
*/
ret |= tmp & 0xe0 >> 5;
ret |= tmp & 0x1c << 1;
ret |= tmp & 0x03 << 6;
ret |= (tmp & 0xe0) >> 5;
ret |= (tmp & 0x1c) << 1;
ret |= (tmp & 0x03) << 6;
*data = ret & 0xff;
#endif
}