diff options
Diffstat (limited to 'drivers/iommu/iova.c')
| -rw-r--r-- | drivers/iommu/iova.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c index 359d5d169ec0..1c5a4cc1f0c6 100644 --- a/drivers/iommu/iova.c +++ b/drivers/iommu/iova.c @@ -139,7 +139,7 @@ static int __alloc_and_insert_iova_range(struct iova_domain *iovad, break; /* found a free slot */ } adjust_limit_pfn: - limit_pfn = curr_iova->pfn_lo - 1; + limit_pfn = curr_iova->pfn_lo ? (curr_iova->pfn_lo - 1) : 0; move_left: prev = curr; curr = rb_prev(curr); |