1 files changed, 18 insertions, 2 deletions

diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index 5385d66b306e..ced8f36ebd01 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -94,10 +94,18 @@ static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data)
 {
         struct usb_device *xdev = dev->udev;
         int ret;
+        void *buffer;
+
+        buffer = kmalloc(size, GFP_NOIO);
+        if (buffer == NULL)
+                return -ENOMEM;
 
         ret = usb_control_msg(xdev, usb_rcvctrlpipe(xdev, 0), MCS7830_RD_BREQ,
-                              MCS7830_RD_BMREQ, 0x0000, index, data,
+                              MCS7830_RD_BMREQ, 0x0000, index, buffer,
                               size, MCS7830_CTRL_TIMEOUT);
+        memcpy(data, buffer, size);
+        kfree(buffer);
+
         return ret;
 }
 
@@ -105,10 +113,18 @@ static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, void *data)
 {
         struct usb_device *xdev = dev->udev;
         int ret;
+        void *buffer;
+
+        buffer = kmalloc(size, GFP_NOIO);
+        if (buffer == NULL)
+                return -ENOMEM;
+
+        memcpy(buffer, data, size);
 
         ret = usb_control_msg(xdev, usb_sndctrlpipe(xdev, 0), MCS7830_WR_BREQ,
-                              MCS7830_WR_BMREQ, 0x0000, index, data,
+                              MCS7830_WR_BMREQ, 0x0000, index, buffer,
                               size, MCS7830_CTRL_TIMEOUT);
+        kfree(buffer);
         return ret;
 }