#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/string.h>
#include <linux/miscdevice.h>
#include <linux/init.h>
} DATA;
/* ID of the PROM node containing all of the EEPROM options. */
+static DEFINE_MUTEX(openprom_mutex);
static struct device_node *options_node;
/*
if (bufsize < 0)
return bufsize;
- lock_kernel();
+ mutex_lock(&openprom_mutex);
switch (cmd) {
case OPROMGETOPT:
}
kfree(opp);
- unlock_kernel();
+ mutex_unlock(&openprom_mutex);
return error;
}
void __user *argp = (void __user *)arg;
int err;
- lock_kernel();
+ mutex_lock(&openprom_mutex);
switch (cmd) {
case OPIOCGET:
err = opiocget(argp, data);
err = -EINVAL;
break;
};
- unlock_kernel();
+ mutex_unlock(&openprom_mutex);
return err;
}
if (!data)
return -ENOMEM;
- lock_kernel();
+ mutex_lock(&openprom_mutex);
data->current_node = of_find_node_by_path("/");
data->lastnode = data->current_node;
file->private_data = (void *) data;
- unlock_kernel();
+ mutex_unlock(&openprom_mutex);
return 0;
}