x86: hyperv: Fixup the (brain) damage caused by the irq cleanup

[linux.git] / drivers / hv / vmbus_drv.c

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 5a6909fff1c198fa577fab86f29d08ce1423aa18..3f0a95290e140daa99880cfffe8d0545dcaa7e0b 100644 (file)
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -615,7 +615,7 @@ static void vmbus_on_msg_dpc(unsigned long data)
        }
 }
 
-static irqreturn_t vmbus_isr(int irq, void *dev_id)
+static void vmbus_isr(void)
 {
        int cpu = smp_processor_id();
        void *page_addr;
@@ -625,7 +625,7 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id)
 
        page_addr = hv_context.synic_event_page[cpu];
        if (page_addr == NULL)
-               return IRQ_NONE;
+               return;
 
        event = (union hv_synic_event_flags *)page_addr +
                                         VMBUS_MESSAGE_SINT;
@@ -661,15 +661,8 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id)
        msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT;
 
        /* Check if there are actual msgs to be processed */
-       if (msg->header.message_type != HVMSG_NONE) {
-               handled = true;
+       if (msg->header.message_type != HVMSG_NONE)
                tasklet_schedule(&msg_dpc);
-       }
-
-       if (handled)
-               return IRQ_HANDLED;
-       else
-               return IRQ_NONE;
 }
 
 /*
@@ -698,12 +691,7 @@ static int vmbus_bus_init(int irq)
        if (ret)
                goto err_cleanup;
 
-       ret = hv_setup_vmbus_irq(irq, vmbus_isr, hv_acpi_dev);
-
-       if (ret != 0) {
-               pr_err("Unable to request IRQ %d\n", irq);
-               goto err_unregister;
-       }
+       hv_setup_vmbus_irq(vmbus_isr);
 
        ret = hv_synic_alloc();
        if (ret)
@@ -723,9 +711,8 @@ static int vmbus_bus_init(int irq)
 
 err_alloc:
        hv_synic_free();
-       hv_remove_vmbus_irq(irq, hv_acpi_dev);
+       hv_remove_vmbus_irq();
 
-err_unregister:
        bus_unregister(&hv_bus);
 
 err_cleanup:
@@ -917,7 +904,6 @@ static int __init hv_acpi_init(void)
        /*
         * Get irq resources first.
         */
-
        ret = acpi_bus_register_driver(&vmbus_acpi_driver);
 
        if (ret)
@@ -948,7 +934,7 @@ cleanup:
 
 static void __exit vmbus_exit(void)
 {
-       hv_remove_vmbus_irq(irq, hv_acpi_dev);
+       hv_remove_vmbus_irq();
        vmbus_free_channels();
        bus_unregister(&hv_bus);
        hv_cleanup();