PCI/P2PDMA: Use correct calc_map_type_and_dist() return type

Instead of using an int for the return value of this function, use the
correct enum pci_p2pdma_map_type.

Link: https://lore.kernel.org/r/20210610160609.28447-4-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 109bd73..abcdb2a 100644 (file)
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -546,11 +546,11 @@ calc_map_type_and_dist_warn(struct pci_dev *provider, struct pci_dev *client,
 int pci_p2pdma_distance_many(struct pci_dev *provider, struct device **clients,
                             int num_clients, bool verbose)
 {
+       enum pci_p2pdma_map_type map;
        bool not_supported = false;
        struct pci_dev *pci_client;
        int total_dist = 0;
-       int distance;
-       int i, ret;
+       int i, distance;
 
        if (num_clients == 0)
                return -1;
@@ -565,15 +565,15 @@ int pci_p2pdma_distance_many(struct pci_dev *provider, struct device **clients,
                }
 
                if (verbose)
-                       ret = calc_map_type_and_dist_warn(provider, pci_client,
+                       map = calc_map_type_and_dist_warn(provider, pci_client,
                                                          &distance);
                else
-                       ret = calc_map_type_and_dist(provider, pci_client,
+                       map = calc_map_type_and_dist(provider, pci_client,
                                                     &distance, NULL, NULL);
 
                pci_dev_put(pci_client);
 
-               if (ret == PCI_P2PDMA_MAP_NOT_SUPPORTED)
+               if (map == PCI_P2PDMA_MAP_NOT_SUPPORTED)
                        not_supported = true;
 
                if (not_supported && !verbose)