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Diffstat (limited to 'arch/mips/lasat/sysctl.c')
-rw-r--r--arch/mips/lasat/sysctl.c63
1 files changed, 32 insertions, 31 deletions
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
index 8ff43a1c1e99..e3d5aaa90f0d 100644
--- a/arch/mips/lasat/sysctl.c
+++ b/arch/mips/lasat/sysctl.c
@@ -30,12 +30,13 @@
#include <linux/string.h>
#include <linux/net.h>
#include <linux/inet.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
#include "sysctl.h"
#include "ds1603.h"
-static DECLARE_MUTEX(lasat_info_sem);
+static DEFINE_MUTEX(lasat_info_mutex);
/* Strategy function to write EEPROM after changing string entry */
int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
@@ -43,17 +44,17 @@ int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
void *newval, size_t newlen, void **context)
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
r = sysctl_string(table, name,
nlen, oldval, oldlenp, newval, newlen, context);
if (r < 0) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
if (newval && newlen) {
lasat_write_eeprom_info();
}
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 1;
}
@@ -63,14 +64,14 @@ int proc_dolasatstring(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp, loff_t *ppos)
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
r = proc_dostring(table, write, filp, buffer, lenp, ppos);
if ( (!write) || r) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
lasat_write_eeprom_info();
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 0;
}
@@ -79,14 +80,14 @@ int proc_dolasatint(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp, loff_t *ppos)
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
if ( (!write) || r) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
lasat_write_eeprom_info();
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 0;
}
@@ -98,7 +99,7 @@ int proc_dolasatrtc(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp, loff_t *ppos)
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
if (!write) {
rtctmp = ds1603_read();
/* check for time < 0 and set to 0 */
@@ -107,11 +108,11 @@ int proc_dolasatrtc(ctl_table *table, int write, struct file *filp,
}
r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
if ( (!write) || r) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
ds1603_set(rtctmp);
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 0;
}
#endif
@@ -122,16 +123,16 @@ int sysctl_lasat_intvec(ctl_table *table, int *name, int nlen,
void *newval, size_t newlen, void **context)
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context);
if (r < 0) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
if (newval && newlen) {
lasat_write_eeprom_info();
}
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 1;
}
@@ -142,19 +143,19 @@ int sysctl_lasat_rtc(ctl_table *table, int *name, int nlen,
void *newval, size_t newlen, void **context)
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
rtctmp = ds1603_read();
if (rtctmp < 0)
rtctmp = 0;
r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context);
if (r < 0) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
if (newval && newlen) {
ds1603_set(rtctmp);
}
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 1;
}
#endif
@@ -192,13 +193,13 @@ int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
return 0;
}
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
if (write) {
len = 0;
p = buffer;
while (len < *lenp) {
if(get_user(c, p++)) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return -EFAULT;
}
if (c == 0 || c == '\n')
@@ -209,7 +210,7 @@ int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
len = sizeof(proc_lasat_ipbuf) - 1;
if (copy_from_user(proc_lasat_ipbuf, buffer, len))
{
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return -EFAULT;
}
proc_lasat_ipbuf[len] = 0;
@@ -230,12 +231,12 @@ int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
len = *lenp;
if (len)
if(copy_to_user(buffer, proc_lasat_ipbuf, len)) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return -EFAULT;
}
if (len < *lenp) {
if(put_user('\n', ((char *) buffer) + len)) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return -EFAULT;
}
len++;
@@ -244,7 +245,7 @@ int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
*ppos += len;
}
update_bcastaddr();
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 0;
}
#endif /* defined(CONFIG_INET) */
@@ -256,10 +257,10 @@ static int sysctl_lasat_eeprom_value(ctl_table *table, int *name, int nlen,
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context);
if (r < 0) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
@@ -271,7 +272,7 @@ static int sysctl_lasat_eeprom_value(ctl_table *table, int *name, int nlen,
lasat_write_eeprom_info();
lasat_init_board_info();
}
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 0;
}
@@ -280,10 +281,10 @@ int proc_lasat_eeprom_value(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp, loff_t *ppos)
{
int r;
- down(&lasat_info_sem);
+ mutex_lock(&lasat_info_mutex);
r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
if ( (!write) || r) {
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return r;
}
if (filp && filp->f_dentry)
@@ -294,7 +295,7 @@ int proc_lasat_eeprom_value(ctl_table *table, int write, struct file *filp,
lasat_board_info.li_eeprom_info.debugaccess = lasat_board_info.li_debugaccess;
}
lasat_write_eeprom_info();
- up(&lasat_info_sem);
+ mutex_unlock(&lasat_info_mutex);
return 0;
}