#include <sound/driver.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/time.h>
* Register section
*/
-struct file_operations snd_pcm_f_ops[2] = {
+const struct file_operations snd_pcm_f_ops[2] = {
{
.owner = THIS_MODULE,
.write = snd_pcm_write,