1 files changed, 3 insertions, 3 deletions

diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index ae3d3c556a16..b94ef4427fe5 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -2499,13 +2499,13 @@ pci_add_map(device_t bus, device_t dev, int reg, struct resource_list *rl,
 			return (barlen);
 	}
 
-	count = 1 << mapsize;
+	count = (pci_addr_t)1 << mapsize;
 	if (basezero || base == pci_mapbase(testval)) {
 		start = 0;	/* Let the parent decide. */
 		end = ~0ULL;
 	} else {
 		start = base;
-		end = base + (1 << mapsize) - 1;
+		end = base + count - 1;
 	}
 	resource_list_add(rl, type, reg, start, end, count);
 
@@ -3680,7 +3680,7 @@ pci_alloc_map(device_t dev, device_t child, int type, int *rid,
 	 * another driver, which won't work.
 	 */
 	mapsize = pci_mapsize(testval);
-	count = 1UL << mapsize;
+	count = (pci_addr_t)1 << mapsize;
 	if (RF_ALIGNMENT(flags) < mapsize)
 		flags = (flags & ~RF_ALIGNMENT_MASK) | RF_ALIGNMENT_LOG2(mapsize);
 	if (PCI_BAR_MEM(testval) && (testval & PCIM_BAR_MEM_PREFETCH))