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>

diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 30f64bf..7114767 100644 (file)
--- 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);