USB: kmemdup() cleanup in drivers/usb/

replace open coded kmemdup() to save some screen space,
and allow inlining/not inlining to be triggered by gcc.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index f6b9f7e1f716..c137c041f7a4 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -401,9 +401,8 @@ static int uea_send_modem_cmd(struct usb_device *usb,
         int ret = -ENOMEM;
         u8 *xfer_buff;
 
-        xfer_buff = kmalloc(size, GFP_KERNEL);
+        xfer_buff = kmemdup(buff, size, GFP_KERNEL);
         if (xfer_buff) {
-                memcpy(xfer_buff, buff, size);
                 ret = usb_control_msg(usb,
                                       usb_sndctrlpipe(usb, 0),
                                       LOAD_INTERNAL,
@@ -595,14 +594,12 @@ static int uea_idma_write(struct uea_softc *sc, void *data, u32 size)
         u8 *xfer_buff;
         int bytes_read;
 
-        xfer_buff = kmalloc(size, GFP_KERNEL);
+        xfer_buff = kmemdup(data, size, GFP_KERNEL);
         if (!xfer_buff) {
                 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
                 return ret;
         }
 
-        memcpy(xfer_buff, data, size);
-
         ret = usb_bulk_msg(sc->usb_dev,
                          usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
                          xfer_buff, size, &bytes_read, BULK_TIMEOUT);
@@ -765,12 +762,11 @@ static int uea_request(struct uea_softc *sc,
         u8 *xfer_buff;
         int ret = -ENOMEM;
 
-        xfer_buff = kmalloc(size, GFP_KERNEL);
+        xfer_buff = kmemdup(data, size, GFP_KERNEL);
         if (!xfer_buff) {
                 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
                 return ret;
         }
-        memcpy(xfer_buff, data, size);
 
         ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
                               UCDC_SEND_ENCAPSULATED_COMMAND,