diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_watchdog.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c index 41f78e2c158..806106b8c98 100644 --- a/drivers/char/ipmi/ipmi_watchdog.c +++ b/drivers/char/ipmi/ipmi_watchdog.c @@ -166,8 +166,6 @@ static char expect_close; static int ifnum_to_use = -1; -static DECLARE_RWSEM(register_sem); - /* Parameters to ipmi_set_timeout */ #define IPMI_SET_TIMEOUT_NO_HB 0 #define IPMI_SET_TIMEOUT_HB_IF_NECESSARY 1 @@ -193,11 +191,9 @@ static int set_param_int(const char *val, struct kernel_param *kp) if (endp == val) return -EINVAL; - down_read(®ister_sem); *((int *)kp->arg) = l; if (watchdog_user) rv = ipmi_set_timeout(IPMI_SET_TIMEOUT_HB_IF_NECESSARY); - up_read(®ister_sem); return rv; } @@ -226,17 +222,15 @@ static int set_param_str(const char *val, struct kernel_param *kp) s = strstrip(valcp); - down_read(®ister_sem); rv = fn(s, NULL); if (rv) - goto out_unlock; + goto out; check_parms(); if (watchdog_user) rv = ipmi_set_timeout(IPMI_SET_TIMEOUT_HB_IF_NECESSARY); - out_unlock: - up_read(®ister_sem); + out: return rv; } @@ -895,7 +889,6 @@ static void ipmi_register_watchdog(int ipmi_intf) { int rv = -EBUSY; - down_write(®ister_sem); if (watchdog_user) goto out; @@ -922,8 +915,6 @@ static void ipmi_register_watchdog(int ipmi_intf) } out: - up_write(®ister_sem); - if ((start_now) && (rv == 0)) { /* Run from startup, so start the timer now. */ start_now = 0; /* Disable this function after first startup. */ @@ -937,8 +928,6 @@ static void ipmi_unregister_watchdog(int ipmi_intf) { int rv; - down_write(®ister_sem); - if (!watchdog_user) goto out; @@ -963,7 +952,7 @@ static void ipmi_unregister_watchdog(int ipmi_intf) watchdog_user = NULL; out: - up_write(®ister_sem); + return; } #ifdef HAVE_NMI_HANDLER |