[PATCH 1/3] aqc111: fix endianness issue in aqc111_change_mtu

[Oliver Neukum]

If the MTU is large enough, the first write to the device
is just repeated. On BE architectures, however, the first
word of the command will be swapped a second time and garbage
will be written. Avoid that.

Signed-off-by: Oliver Neukum <oneu...@suse.com>
---
 drivers/net/usb/aqc111.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c
index aff995be2a31..408df2d335e3 100644
--- a/drivers/net/usb/aqc111.c
+++ b/drivers/net/usb/aqc111.c
@@ -453,6 +453,8 @@ static int aqc111_change_mtu(struct net_device *net, int 
new_mtu)
                reg16 = 0x1420;
        else if (dev->net->mtu <= 16334)
                reg16 = 0x1A20;
+       else
+               return 0;
 
        aqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW,
                           2, &reg16);
-- 
2.16.4