vfio/type1: Fix build warning

awilliam · awilliam · commit 089f1c6b2dae · 2016-05-30T07:58:10.000-06:00
This function cannot actually be called with npage = 0, so in practice
this doesn't return an uninitialized value.

Signed-off-by: Alex Williamson &lt;alex.williamson@redhat.com&gt;
diff --git 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,

Original file line number	Diff line number	Diff line change
`@@ -515,7 +515,7 @@ static int map_try_harder(struct vfio_domain *domain, dma_addr_t iova,`
`515`	`515`	`unsigned long pfn, long npage, int prot)`
`516`	`516`	`{`
`517`	`517`	`long i;`
`518`		`- int ret;`
	`518`	`+ int ret = 0;`
`519`	`519`
`520`	`520`	`for (i = 0; i < npage; i++, pfn++, iova += PAGE_SIZE) {`
`521`	`521`	`ret = iommu_map(domain->domain, iova,`