Argument "page_size" passing to function "fetch_pte" could be uninitialized if the function returns NULL. The caller "iommu_unmap_page" checks the return value but the page_size is used outside the if block.
Signed-off-by: [email protected] <[email protected]> --- drivers/iommu/amd_iommu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 774e057..3a23e97 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -1397,6 +1397,7 @@ static u64 *fetch_pte(struct protection_domain *domain, { int level; u64 *pte; + *page_size = 0; if (address > PM_LEVEL_SIZE(domain->mode)) return NULL; -- 2.7.4 -- Kind Regards, *Yizhuo Zhai* *Computer Science, Graduate Student* *University of California, Riverside *
_______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
