watchdog: hpwdt: prevent multiple "NMI occurred" messages

On platforms with no iCRU support don't print two, (possibly conflicting),
"NMI occurred" messages when the firmware is unable to source the NMI.

Please note that one of the enhancements to the v1.3.0 hpwdt driver is to panic and allow
KDUMP to succeed even on NMIs that are unknown to the platform firmware.

Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Reviewed-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 410fba45378d404f5ce4045faaf6f3c9782a957b..809cbda03d7a24390a62b90775859bb029c6d760 100644 (file)
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -494,15 +494,16 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
                asminline_call(&cmn_regs, cru_rom_addr);
        die_nmi_called = 1;
        spin_unlock_irqrestore(&rom_lock, rom_pl);
+
+       if (allow_kdump)
+               hpwdt_stop();
+
        if (!is_icru) {
                if (cmn_regs.u1.ral == 0) {
-                       printk(KERN_WARNING "hpwdt: An NMI occurred, "
+                       panic("An NMI occurred, "
                                "but unable to determine source.\n");
                }
        }
-
-       if (allow_kdump)
-               hpwdt_stop();
        panic("An NMI occurred, please see the Integrated "
                "Management Log for details.\n");