kernel/sysctl.c: remove unnecessary (void*) conversions

remove unnecessary void* type casting
Signed-off-by: Dong Chuanjian <chuanjian@nfschina.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>

kernel/sysctl.c

@@ -1052,9 +1052,9 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table,
 		return 0;
 	}
 
-	i = (unsigned long *) data;
-	min = (unsigned long *) table->extra1;
-	max = (unsigned long *) table->extra2;
+	i = data;
+	min = table->extra1;
+	max = table->extra2;
 	vleft = table->maxlen / sizeof(unsigned long);
 	left = *lenp;