A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

iommu/vt-d: Enhance error recovery in function intel_enable_irq_remapping()

Browse source 
Enhance error recovery in function intel_enable_irq_remapping()
by tearing down all created data structures.

Signed-off-by: Jiang Liu <[email protected]>
Reviewed-by: Yijing Wang <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
This commit is contained in:
Jiang Liu 2014-11-09 22:48:01 +08:00 • committed by Joerg Roedel
commit 51acce33c4
1 changed files with 5 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

8
drivers/iommu/intel_irq_remapping.c
View file

@ -702,9 +702,11 @@ static int __init intel_enable_irq_remapping(void)
return eim ? IRQ_REMAP_X2APIC_MODE : IRQ_REMAP_XAPIC_MODE;
error:
/*
* handle error condition gracefully here!
*/
for_each_iommu(iommu, drhd)
if (ecap_ir_support(iommu->ecap)) {
iommu_disable_irq_remapping(iommu);
intel_teardown_irq_remapping(iommu);
}
if (x2apic_present)
pr_warn("Failed to enable irq remapping. You are vulnerable to irq-injection attacks.\n");