[PATCH v4 01/40] hw/isa: check for current_cpu before generating IRQ

[Alex Bennée]

It's possible to trigger this function from qtest/monitor at which
point current_cpu won't point at the right place. Check it and
fall back to first_cpu if it's NULL.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Bug 1878645 <1878645@bugs.launchpad.net>
---
 hw/isa/lpc_ich9.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index cd6e169d47a..791c878eb0b 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -439,7 +439,7 @@ static void ich9_apm_ctrl_changed(uint32_t val, void *arg)
                 cpu_interrupt(cs, CPU_INTERRUPT_SMI);
             }
         } else {
-            cpu_interrupt(current_cpu, CPU_INTERRUPT_SMI);
+            cpu_interrupt(current_cpu ? current_cpu : first_cpu, 
CPU_INTERRUPT_SMI);
         }
     }
 }
-- 
2.20.1