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ACPIPHP: prevent duplicate slot numbers when no _SUN

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Dock bridges generally do not implement _SUN, yet show up as ejectable
slots.  If you have more than one ejectable slot that does not implement
SUN, with the current code you will get duplicate slot numbers.  So, if
there is no _SUN, use the current count of the number of slots found
instead.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Kristen Accardi 2006-06-28 03:09:54 -04:00 committed by Len Brown
parent 2b85e1307f
commit 95b38b3f45
1 changed files with 7 additions and 2 deletions
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9
drivers/pci/hotplug/acpiphp_glue.c
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@ -219,8 +219,13 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
newfunc->flags |= FUNC_HAS_DCK;
status = acpi_evaluate_integer(handle, "_SUN", NULL, &sun);
if (ACPI_FAILURE(status))
sun = -1;
if (ACPI_FAILURE(status)) {
/*
* use the count of the number of slots we've found
* for the number of the slot
*/
sun = bridge->nr_slots+1;
}
/* search for objects that share the same slot */
for (slot = bridge->slots; slot; slot = slot->next)