USB: Realtek cr: Use kmemdup rather than duplicating its implementation

Use kmemdup rather than duplicating its implementation

The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 30f64bfe101e..71147679cb11 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -398,10 +398,9 @@ static int rts51x_write_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
         u8 cmnd[12] = { 0 };
         u8 *buf;
 
-        buf = kmalloc(len, GFP_NOIO);
+        buf = kmemdup(data, len, GFP_NOIO);
         if (buf == NULL)
                 return USB_STOR_TRANSPORT_ERROR;
-        memcpy(buf, data, len);
 
         US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);