trivial: unnecessary (void*) cast removal in sound/oss/msnd.c

This is a trivial patch that removes an unnecessary void pointer cast.
Signed-off-by: Chris Sanford <crsanford@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

sound/oss/msnd.c

@@ -100,7 +100,7 @@ void msnd_fifo_free(msnd_fifo *f)
 int msnd_fifo_alloc(msnd_fifo *f, size_t n)
 {
 	msnd_fifo_free(f);
-	f->data = (char *)vmalloc(n);
+	f->data = vmalloc(n);
 	f->n = n;
 	f->tail = 0;
 	f->head = 0;