Use kmemdup_nul() helper instead of open-coding it to simplify the code.
Signed-off-by: Ruan Jinjie <ruanjinjie@xxxxxxxxxx>
---
drivers/usb/core/message.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 0d2bfc909019..5762fd04f0d5 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1029,10 +1029,9 @@ char *usb_cache_string(struct usb_device *udev, int index)
if (buf) {
len = usb_string(udev, index, buf, MAX_USB_STRING_SIZE);
if (len > 0) {
- smallbuf = kmalloc(++len, GFP_NOIO);
+ smallbuf = kmemdup_nul(buf, len, GFP_NOIO);
if (!smallbuf)
return buf;
- memcpy(smallbuf, buf, len);
}
kfree(buf);
}
--
2.34.1
