Staging: lustre: libcfs: Drop unnecessary cast on void*

This patch does away with the cast on void * as it is unnecessary.

Semantic patch used is as follows:

@r@
expression x;
void* e;
type T;
identifier f;
@@
(
  *((T *)e)
|
  ((T *)x)[...]
|
  ((T *)x)->f
|
- (T *)
  e
)
Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/libcfs/linux/linux-module.c

@@ -49,7 +49,7 @@ int libcfs_ioctl_getdata(char *buf, char *end, void *arg)
 	hdr = (struct libcfs_ioctl_hdr *)buf;
 	data = (struct libcfs_ioctl_data *)buf;
 
-	if (copy_from_user(buf, (void *)arg, sizeof(*hdr)))
+	if (copy_from_user(buf, arg, sizeof(*hdr)))
 		return -EFAULT;
 
 	if (hdr->ioc_version != LIBCFS_IOCTL_VERSION) {
@@ -69,7 +69,7 @@ int libcfs_ioctl_getdata(char *buf, char *end, void *arg)
 	}
 
 	orig_len = hdr->ioc_len;
-	if (copy_from_user(buf, (void *)arg, hdr->ioc_len))
+	if (copy_from_user(buf, arg, hdr->ioc_len))
 		return -EFAULT;
 	if (orig_len != data->ioc_len)
 		return -EINVAL;