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AMD IOMMU: allocate rlookup_table with __GFP_ZERO 

Impact: fix bug which can lead to panic in prealloc_protection_domains()

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
hifive-unleashed-5.1
Joerg Roedel 2008-12-16 19:17:11 +01:00
parent 1bda71282d
commit 83fd5cc648
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kernel/amd_iommu_init.c
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@ -1074,7 +1074,8 @@ int __init amd_iommu_init(void)
goto free;
/* IOMMU rlookup table - find the IOMMU for a specific device */
amd_iommu_rlookup_table = (void *)__get_free_pages(GFP_KERNEL,
amd_iommu_rlookup_table = (void *)__get_free_pages(
GFP_KERNEL | __GFP_ZERO,
get_order(rlookup_table_size));
if (amd_iommu_rlookup_table == NULL)
goto free;