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Commit 65259094 authored by Bob Moore's avatar Bob Moore Committed by Len Brown
Browse files

ACPICA: Fix possible dereference of null pointer 



Fix dereference of possibly null pointer "Predefined" in the case
where the method is not one of the predefined methods.

Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent b21245a8

drivers/acpi/acpica/nspredef.c

+2 −5
Original line number Diff line number Diff line
@@ -144,7 +144,7 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, 


	pathname = acpi_ns_get_external_pathname(node);

	if (!pathname) {

		pathname = ACPI_CAST_PTR(char, predefined->info.name);

		return AE_OK;	/* Could not get pathname, ignore */

	}



	/*
@@ -230,10 +230,7 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, 
	}



      exit:

	if (pathname != predefined->info.name) {

	ACPI_FREE(pathname);

	}



	return (status);

}