Kernel: Stop idling after handling an IRQ

If we receive an IRQ while the idle task is running, prevent it from
re-halting the CPU after the IRQ handler returns.

Instead have the idle task yield to the scheduler, so we can see if
the IRQ has unblocked something.

1 files changed, 3 insertions, 1 deletions

diff --git a/Kernel/Arch/i386/CPU.cpp b/Kernel/Arch/i386/CPU.cpp
index 099b2092fb..ab9047da87 100644
--- a/Kernel/Arch/i386/CPU.cpp
+++ b/Kernel/Arch/i386/CPU.cpp
@@ -490,8 +490,10 @@ void handle_irq()
         }
     }
 
-    if (s_irq_handler[irq])
+    if (s_irq_handler[irq]) {
         s_irq_handler[irq]->handle_irq();
+        Scheduler::stop_idling();
+    }
     PIC::eoi(irq);
 }