pata_via: fix double put on isa bridge

In via_init_one, when via_isa_bridges iterator reaches
PCI_DEVICE_ID_VIA_ANON and last but one via_isa_bridges bridge is
found but rev doesn't match, pci_dev_put(isa) is called twice.

Do pci_dev_put only once.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 88984b803d6d..520d5a31f8a2 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -526,7 +526,7 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                 .port_ops = &via_port_ops
         };
         const struct ata_port_info *ppi[] = { NULL, NULL };
-        struct pci_dev *isa = NULL;
+        struct pci_dev *isa;
         const struct via_isa_bridge *config;
         static int printed_version;
         u8 enable;
@@ -551,15 +551,13 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
                 if ((isa = pci_get_device(PCI_VENDOR_ID_VIA +
                         !!(config->flags & VIA_BAD_ID),
                         config->id, NULL))) {
+                        u8 rev = isa->revision;
+                        pci_dev_put(isa);
 
-                        if (isa->revision >= config->rev_min &&
-                            isa->revision <= config->rev_max)
+                        if (rev >= config->rev_min && rev <= config->rev_max)
                                 break;
-                        pci_dev_put(isa);
                 }
 
-        pci_dev_put(isa);
-
         if (!(config->flags & VIA_NO_ENABLES)) {
                 /* 0x40 low bits indicate enabled channels */
                 pci_read_config_byte(pdev, 0x40 , &enable);