lguest: fix ugly <NULL> in /proc/interrupts

Before:
	root@ubuntu:~# cat /proc/interrupts
	           CPU0
	  1:       1672    lguest-<NULL>    virtio0
	  2:          1    lguest-<NULL>    virtio1
	  ...
After:
	root@ubuntu:~# cat /proc/interrupts
	           CPU0
	  1:       2889    lguest-level     virtio0
	  2:          9    lguest-level     virtio1

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index af65b2da3ba0..5c7e2fd52075 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -582,8 +582,9 @@ static void __init lguest_init_IRQ(void)
                 int vector = FIRST_EXTERNAL_VECTOR + i;
                 if (vector != SYSCALL_VECTOR) {
                         set_intr_gate(vector, interrupt[i]);
-                        set_irq_chip_and_handler(i, &lguest_irq_controller,
-                                                 handle_level_irq);
+                        set_irq_chip_and_handler_name(i, &lguest_irq_controller,
+                                                      handle_level_irq,
+                                                      "level");
                 }
         }
         /* This call is required to set up for 4k stacks, where we have