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Code Issues Releases Activity

Get the ACPI softc before we potentially dereference it.

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This commit is contained in:
Mike Smith 2001-07-07 10:18:10 +00:00
parent 30185bcabe
commit db302f9945
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=79386
1 changed files with 5 additions and 5 deletions
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10
sys/dev/acpica/Osd/OsdInterrupt.c
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@ -57,6 +57,11 @@ AcpiOsInstallInterruptHandler(UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine
FUNCTION_TRACE(__func__);
if ((sc = devclass_get_softc(acpi_devclass, 0)) == NULL)
panic("can't find ACPI device to register interrupt");
if (sc->acpi_dev == NULL)
panic("acpi softc has invalid device");
if ((InterruptNumber < 0) || (InterruptNumber > 255))
return_ACPI_STATUS(AE_BAD_PARAMETER);
if (ServiceRoutine == NULL)
@ -67,11 +72,6 @@ AcpiOsInstallInterruptHandler(UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine
}
InterruptHandler = ServiceRoutine;
if ((sc = devclass_get_softc(acpi_devclass, 0)) == NULL)
panic("can't find ACPI device to register interrupt");
if (sc->acpi_dev == NULL)
panic("acpi softc has invalid device");
/*
* This isn't strictly true, as we ought to be able to handle > 1 interrupt. The ACPI
* spec doesn't call for this though.