diff options
| author | Stephen Warren <swarren@wwwdotorg.org> | 2016-03-22 22:28:16 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-04-01 17:17:40 -0400 |
| commit | e320f0bc9b81076e4c59d281dff1428df5324809 (patch) | |
| tree | 98e3b03a35130da955ce4e07c47c5f1836112d17 /drivers | |
| parent | f8bb69643550fccbf1df514deda53089da7940e3 (diff) | |
smsc95xx: fix operation on 64-bit systems
smsc95xx_read_reg() should calculate sizeof(*data) not sizeof(data) since
data is a pointer, and the value pointed at is being transferred over USB,
not the value of the pointer. This fixes operation of the driver in 64-bit
builds, such as the Raspberry Pi 3.
Reported-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/eth/smsc95xx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/eth/smsc95xx.c b/drivers/usb/eth/smsc95xx.c index 3099bf4fd4..08eaed5c2e 100644 --- a/drivers/usb/eth/smsc95xx.c +++ b/drivers/usb/eth/smsc95xx.c @@ -188,10 +188,10 @@ static int smsc95xx_read_reg(struct usb_device *udev, u32 index, u32 *data) len = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 0, index, tmpbuf, sizeof(data), + 0, index, tmpbuf, sizeof(*data), USB_CTRL_GET_TIMEOUT); *data = tmpbuf[0]; - if (len != sizeof(data)) { + if (len != sizeof(*data)) { debug("smsc95xx_read_reg failed: index=%d, len=%d", index, len); return -EIO; |