From: Oliver Neukum oneukum@suse.com
[ Upstream commit 2cf672709beb005f6e90cb4edbed6f2218ba953e ]
If you are using a function that does a swap in place, you cannot just reuse the buffer on the assumption that it has not been changed.
Signed-off-by: Oliver Neukum oneukum@suse.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/usb/aqc111.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -1428,7 +1428,7 @@ static int aqc111_resume(struct usb_inte { struct usbnet *dev = usb_get_intfdata(intf); struct aqc111_data *aqc111_data = dev->driver_priv; - u16 reg16; + u16 reg16, oldreg16; u8 reg8;
netif_carrier_off(dev->net); @@ -1444,9 +1444,11 @@ static int aqc111_resume(struct usb_inte /* Configure RX control register => start operation */ reg16 = aqc111_data->rxctl; reg16 &= ~SFR_RX_CTL_START; + /* needs to be saved in case endianness is swapped */ + oldreg16 = reg16; aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16);
- reg16 |= SFR_RX_CTL_START; + reg16 = oldreg16 | SFR_RX_CTL_START; aqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_CTL, 2, ®16);
aqc111_set_phy_speed(dev, aqc111_data->autoneg,