From: Joerg Roedel Date: Tue, 16 Dec 2008 18:17:11 +0000 (+0100) Subject: AMD IOMMU: allocate rlookup_table with __GFP_ZERO X-Git-Tag: v2.6.28~17^2~4 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=83fd5cc6481c6b7fa8b45f8a7e0aa7120213430b;p=linux-2.6-omap-h63xx.git 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 --- diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 30ae2701b3d..c90a15eba5c 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) 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;