vfio/type1: Fix build warning

This function cannot actually be called with npage = 0, so in practice
this doesn't return an uninitialized value.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 15a65823aad9cb84f1f8e2696836a6156ffb7700..2ba19424e4a18f33555f370247ffc28204212089 100644 (file)
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -515,7 +515,7 @@ static int map_try_harder(struct vfio_domain *domain, dma_addr_t iova,
                          unsigned long pfn, long npage, int prot)
 {
        long i;
-       int ret;
+       int ret = 0;
 
        for (i = 0; i < npage; i++, pfn++, iova += PAGE_SIZE) {
                ret = iommu_map(domain->domain, iova,