From 7e041abf79c1b555b9d117d4a319b505ee601f55 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 26 Oct 2014 22:25:05 -0700 Subject: [PATCH] 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 Acked-by: David Sterba Reviewed-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/tty/ipwireless/hardware.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/tty/ipwireless/hardware.c b/drivers/tty/ipwireless/hardware.c index 2c14842541dd..5c77e1eac4ee 100644 --- a/drivers/tty/ipwireless/hardware.c +++ b/drivers/tty/ipwireless/hardware.c @@ -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 } -- 2.20.1