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dmar: fix dmar_parse_dev() devices_cnt error condition check 

It is possible that,
instead of PCI endpoint/sub-hierarchy structures, only IO-APIC/HPET
devices may be reported under device scope structures. Fix the devices_cnt
error check, which cares about only PCI structures and removes the
dma-remapping unit structure (dmaru) when the devices_cnt is zero
and include_all flag is not set.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Suresh Siddha 2008-09-03 16:58:35 -07:00 committed by Ingo Molnar
parent 04e2ea6706
commit 1c7d1bcad2
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/dmar.c
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@ -212,7 +212,7 @@ dmar_parse_dev(struct dmar_drhd_unit *dmaru)
include_all = 1;
}
if (ret || (dmaru->devices_cnt == 0 && !dmaru->include_all)) {
if (ret) {
list_del(&dmaru->list);
kfree(dmaru);
}