diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index 64f3f66a7a35..d19861166b50 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -1144,7 +1144,7 @@ static struct pl2303_buf *pl2303_buf_alloc(unsigned int size)
 	if (size == 0)
 		return NULL;
 
-	pb = (struct pl2303_buf *)kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL);
+	pb = kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL);
 	if (pb == NULL)
 		return NULL;