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authorJoerg Roedel <joerg.roedel@amd.com>2010-01-22 16:40:20 +0100
committerJoerg Roedel <joerg.roedel@amd.com>2010-01-22 16:48:57 +0100
commitd91afd15b041f27d34859c79afa9e172018a86f4 (patch)
tree649ead5c81f1c9d94a584cb4fbe966f1051047b3 /arch/x86/kernel/amd_iommu.c
parent92dcffb916d309aa01778bf8963a6932e4014d07 (diff)
x86/amd-iommu: Fix possible integer overflow
The variable i in this function could be increased to over 2**32 which would result in an integer overflow when using int. Fix it by changing i to unsigned long. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
-rw-r--r--arch/x86/kernel/amd_iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 23824fef789..c2ccbd7b862 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -980,7 +980,7 @@ static int alloc_new_range(struct dma_ops_domain *dma_dom,
{
int index = dma_dom->aperture_size >> APERTURE_RANGE_SHIFT;
struct amd_iommu *iommu;
- int i;
+ unsigned long i;
#ifdef CONFIG_IOMMU_STRESS
populate = false;