diff options
Diffstat (limited to 'drivers/char/ipmi/ipmi_watchdog.c')
| -rw-r--r-- | drivers/char/ipmi/ipmi_watchdog.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c index e4ff3b50de7f..883b4a341012 100644 --- a/drivers/char/ipmi/ipmi_watchdog.c +++ b/drivers/char/ipmi/ipmi_watchdog.c @@ -342,13 +342,17 @@ static atomic_t msg_tofree = ATOMIC_INIT(0); static DECLARE_COMPLETION(msg_wait); static void msg_free_smi(struct ipmi_smi_msg *msg) { - if (atomic_dec_and_test(&msg_tofree)) - complete(&msg_wait); + if (atomic_dec_and_test(&msg_tofree)) { + if (!oops_in_progress) + complete(&msg_wait); + } } static void msg_free_recv(struct ipmi_recv_msg *msg) { - if (atomic_dec_and_test(&msg_tofree)) - complete(&msg_wait); + if (atomic_dec_and_test(&msg_tofree)) { + if (!oops_in_progress) + complete(&msg_wait); + } } static struct ipmi_smi_msg smi_msg = { .done = msg_free_smi @@ -434,8 +438,10 @@ static int _ipmi_set_timeout(int do_heartbeat) rv = __ipmi_set_timeout(&smi_msg, &recv_msg, &send_heartbeat_now); - if (rv) + if (rv) { + atomic_set(&msg_tofree, 0); return rv; + } wait_for_completion(&msg_wait); @@ -497,7 +503,7 @@ static void panic_halt_ipmi_heartbeat(void) msg.cmd = IPMI_WDOG_RESET_TIMER; msg.data = NULL; msg.data_len = 0; - atomic_inc(&panic_done_count); + atomic_add(2, &panic_done_count); rv = ipmi_request_supply_msgs(watchdog_user, (struct ipmi_addr *) &addr, 0, @@ -507,7 +513,7 @@ static void panic_halt_ipmi_heartbeat(void) &panic_halt_heartbeat_recv_msg, 1); if (rv) - atomic_dec(&panic_done_count); + atomic_sub(2, &panic_done_count); } static struct ipmi_smi_msg panic_halt_smi_msg = { @@ -531,12 +537,12 @@ static void panic_halt_ipmi_set_timeout(void) /* Wait for the messages to be free. */ while (atomic_read(&panic_done_count) != 0) ipmi_poll_interface(watchdog_user); - atomic_inc(&panic_done_count); + atomic_add(2, &panic_done_count); rv = __ipmi_set_timeout(&panic_halt_smi_msg, &panic_halt_recv_msg, &send_heartbeat_now); if (rv) { - atomic_dec(&panic_done_count); + atomic_sub(2, &panic_done_count); pr_warn("Unable to extend the watchdog timeout\n"); } else { if (send_heartbeat_now) @@ -580,6 +586,7 @@ restart: &recv_msg, 1); if (rv) { + atomic_set(&msg_tofree, 0); pr_warn("heartbeat send failure: %d\n", rv); return rv; } |