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Commit 83fd5cc6 authored by Joerg Roedel's avatar Joerg Roedel
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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: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 1bda7128

arch/x86/kernel/amd_iommu_init.c

+2 −1
Original line number Diff line number Diff line
@@ -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;