svn commit: r217278 - head/sys/dev/acpica/Osd

[Jung-uk Kim]

Author: jkim
Date: Tue Jan 11 19:20:01 2011
New Revision: 217278
URL: http://svn.freebsd.org/changeset/base/217278

Log:
  Fix a witness(4) warning introduced in r217238.

Modified:
  head/sys/dev/acpica/Osd/OsdInterrupt.c

Modified: head/sys/dev/acpica/Osd/OsdInterrupt.c
==============================================================================
--- head/sys/dev/acpica/Osd/OsdInterrupt.c      Tue Jan 11 19:17:13 2011        
(r217277)
+++ head/sys/dev/acpica/Osd/OsdInterrupt.c      Tue Jan 11 19:20:01 2011        
(r217278)
@@ -91,6 +91,18 @@ acpi_intr_handler(void *arg)
        return (FILTER_STRAY);
 }
 
+static void
+acpi_intr_destroy(device_t dev, struct acpi_intr *ai)
+{
+
+       if (ai->ai_handle != NULL)
+               bus_teardown_intr(dev, ai->ai_irq, ai->ai_handle);
+       if (ai->ai_irq != NULL)
+               bus_release_resource(dev, SYS_RES_IRQ, ai->ai_rid, ai->ai_irq);
+       bus_delete_resource(dev, SYS_RES_IRQ, ai->ai_rid);
+       free(ai, M_ACPIINTR);
+}
+
 ACPI_STATUS
 AcpiOsInstallInterruptHandler(UINT32 InterruptNumber,
     ACPI_OSD_HANDLER ServiceRoutine, void *Context)
@@ -123,6 +135,8 @@ AcpiOsInstallInterruptHandler(UINT32 Int
        ai->ai_number = InterruptNumber;
        ai->ai_handler = ServiceRoutine;
        ai->ai_context = Context;
+       SLIST_INSERT_HEAD(&acpi_intr_list, ai, ai_link);
+       mtx_unlock(&acpi_intr_lock);
 
        /*
         * If the MADT contained an interrupt override directive for the SCI,
@@ -151,19 +165,13 @@ AcpiOsInstallInterruptHandler(UINT32 Int
                device_printf(sc->acpi_dev, "could not set up interrupt\n");
                goto error;
        }
-       SLIST_INSERT_HEAD(&acpi_intr_list, ai, ai_link);
-       mtx_unlock(&acpi_intr_lock);
        return_ACPI_STATUS (AE_OK);
 
 error:
+       mtx_lock(&acpi_intr_lock);
+       SLIST_REMOVE(&acpi_intr_list, ai, acpi_intr, ai_link);
        mtx_unlock(&acpi_intr_lock);
-       if (ai->ai_handle != NULL)
-               bus_teardown_intr(sc->acpi_dev, ai->ai_irq, ai->ai_handle);
-       if (ai->ai_irq != NULL)
-               bus_release_resource(sc->acpi_dev, SYS_RES_IRQ, ai->ai_rid,
-                   ai->ai_irq);
-       bus_delete_resource(sc->acpi_dev, SYS_RES_IRQ, ai->ai_rid);
-       free(ai, M_ACPIINTR);
+       acpi_intr_destroy(sc->acpi_dev, ai);
        return_ACPI_STATUS (AE_ALREADY_EXISTS);
 }
 
@@ -195,10 +203,7 @@ AcpiOsRemoveInterruptHandler(UINT32 Inte
        mtx_unlock(&acpi_intr_lock);
        if (ai == NULL)
                return_ACPI_STATUS (AE_NOT_EXIST);
-       bus_teardown_intr(sc->acpi_dev, ai->ai_irq, ai->ai_handle);
-       bus_release_resource(sc->acpi_dev, SYS_RES_IRQ, ai->ai_rid, ai->ai_irq);
-       bus_delete_resource(sc->acpi_dev, SYS_RES_IRQ, ai->ai_rid);
-       free(ai, M_ACPIINTR);
+       acpi_intr_destroy(sc->acpi_dev, ai);
        return_ACPI_STATUS (AE_OK);
 }
 
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