diff options
| author | Petko Manolov <petko.manolov@konsulko.com> | 2020-09-27 15:49:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-02 11:30:10 +0200 |
| commit | b2a0f274e3f7e5ad3b5546e4293ca1cf25126f51 (patch) | |
| tree | 57130a29bb22ff83a44f2cc544708cc9fadcafbe | |
| parent | 5789051fc57bb6abecb6ab5b44fdc4b5e8f90b5a (diff) | |
| download | linux-b2a0f274e3f7e5ad3b5546e4293ca1cf25126f51.tar.bz2 | |
net: rtl8150: Use the new usb control message API.
The old usb_control_msg() let the caller handle the error and also did not
account for partial reads. Since these are now considered harmful, move the
driver over to usb_control_msg_recv/send() calls.
Signed-off-by: Petko Manolov <petko.manolov@konsulko.com>
Acked-by: David S. Miller <davem@davemloft.net>
Link: https://lore.kernel.org/r/20200927124909.16380-3-petko.manolov@konsulko.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/usb/rtl8150.c | 32 |
1 files changed, 6 insertions, 26 deletions
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c index 733f120c852b..b3a0b188b1a1 100644 --- a/drivers/net/usb/rtl8150.c +++ b/drivers/net/usb/rtl8150.c @@ -152,36 +152,16 @@ static const char driver_name [] = "rtl8150"; */ static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) { - void *buf; - int ret; - - buf = kmalloc(size, GFP_NOIO); - if (!buf) - return -ENOMEM; - - ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), - RTL8150_REQ_GET_REGS, RTL8150_REQT_READ, - indx, 0, buf, size, 500); - if (ret > 0 && ret <= size) - memcpy(data, buf, ret); - kfree(buf); - return ret; + return usb_control_msg_recv(dev->udev, 0, RTL8150_REQ_GET_REGS, + RTL8150_REQT_READ, indx, 0, data, size, + 1000, GFP_NOIO); } static int set_registers(rtl8150_t * dev, u16 indx, u16 size, const void *data) { - void *buf; - int ret; - - buf = kmemdup(data, size, GFP_NOIO); - if (!buf) - return -ENOMEM; - - ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), - RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE, - indx, 0, buf, size, 500); - kfree(buf); - return ret; + return usb_control_msg_send(dev->udev, 0, RTL8150_REQ_SET_REGS, + RTL8150_REQT_WRITE, indx, 0, data, size, + 1000, GFP_NOIO); } static void async_set_reg_cb(struct urb *urb) |