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authorJoerg Roedel <joerg.roedel@amd.com>2008-12-16 13:17:11 -0500
committerJoerg Roedel <joerg.roedel@amd.com>2008-12-16 13:17:11 -0500
commit83fd5cc6481c6b7fa8b45f8a7e0aa7120213430b (patch)
treed60bd8cbfce34e11f186a97eb5be2a5c2632b150
parent1bda71282ded6a2e09a2db7c8884542fb46bfd4f (diff)
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>
-rw-r--r--arch/x86/kernel/amd_iommu_init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 30ae2701b3df..c90a15eba5c5 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -1074,7 +1074,8 @@ int __init amd_iommu_init(void)
1074 goto free; 1074 goto free;
1075 1075
1076 /* IOMMU rlookup table - find the IOMMU for a specific device */ 1076 /* IOMMU rlookup table - find the IOMMU for a specific device */
1077 amd_iommu_rlookup_table = (void *)__get_free_pages(GFP_KERNEL, 1077 amd_iommu_rlookup_table = (void *)__get_free_pages(
1078 GFP_KERNEL | __GFP_ZERO,
1078 get_order(rlookup_table_size)); 1079 get_order(rlookup_table_size));
1079 if (amd_iommu_rlookup_table == NULL) 1080 if (amd_iommu_rlookup_table == NULL)
1080 goto free; 1081 goto free;