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path: root/drivers/watchdog/hpwdt.c
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Diffstat (limited to 'drivers/watchdog/hpwdt.c')
-rw-r--r--drivers/watchdog/hpwdt.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 6a63535fc04d..2686f3eaeedf 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -145,8 +145,8 @@ MODULE_DEVICE_TABLE(pci, hpwdt_devices);
145 145
146#define HPWDT_ARCH 32 146#define HPWDT_ARCH 32
147 147
148static void asminline_call(struct cmn_registers *pi86Regs, 148asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
149 unsigned long *pRomEntry) 149 unsigned long *pRomEntry)
150{ 150{
151 asm("pushl %ebp \n\t" 151 asm("pushl %ebp \n\t"
152 "movl %esp, %ebp \n\t" 152 "movl %esp, %ebp \n\t"
@@ -333,8 +333,8 @@ static int __devinit detect_cru_service(void)
333 333
334#define HPWDT_ARCH 64 334#define HPWDT_ARCH 64
335 335
336static void asminline_call(struct cmn_registers *pi86Regs, 336asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
337 unsigned long *pRomEntry) 337 unsigned long *pRomEntry)
338{ 338{
339 asm("pushq %rbp \n\t" 339 asm("pushq %rbp \n\t"
340 "movq %rsp, %rbp \n\t" 340 "movq %rsp, %rbp \n\t"
@@ -418,20 +418,23 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
418 static unsigned long rom_pl; 418 static unsigned long rom_pl;
419 static int die_nmi_called; 419 static int die_nmi_called;
420 420
421 if (ulReason == DIE_NMI || ulReason == DIE_NMI_IPI) { 421 if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
422 spin_lock_irqsave(&rom_lock, rom_pl); 422 return NOTIFY_OK;
423 if (!die_nmi_called) 423
424 asminline_call(&cmn_regs, cru_rom_addr); 424 spin_lock_irqsave(&rom_lock, rom_pl);
425 die_nmi_called = 1; 425 if (!die_nmi_called)
426 spin_unlock_irqrestore(&rom_lock, rom_pl); 426 asminline_call(&cmn_regs, cru_rom_addr);
427 if (cmn_regs.u1.ral != 0) { 427 die_nmi_called = 1;
428 panic("An NMI occurred, please see the Integrated " 428 spin_unlock_irqrestore(&rom_lock, rom_pl);
429 "Management Log for details.\n"); 429 if (cmn_regs.u1.ral == 0) {
430 } 430 printk(KERN_WARNING "hpwdt: An NMI occurred, "
431 "but unable to determine source.\n");
432 } else {
433 panic("An NMI occurred, please see the Integrated "
434 "Management Log for details.\n");
431 } 435 }
432 436
433 die_nmi_called = 0; 437 return NOTIFY_STOP;
434 return NOTIFY_DONE;
435} 438}
436 439
437/* 440/*