vlib: fix issues in the new pci code reported by coverity

Change-Id: I8acc5c419b6ad01937c3aecec42801463d4a119a
Signed-off-by: Damjan Marion <damarion@cisco.com>

diff --git a/src/vlib/linux/pci.c b/src/vlib/linux/pci.c
index 24e2bb5..69dcdd0 100644 (file)
--- a/src/vlib/linux/pci.c
+++ b/src/vlib/linux/pci.c
@@ -259,6 +259,8 @@ vlib_pci_get_device_info (vlib_pci_addr_t * addr, clib_error_t ** error)
        }
     }
 
+  close (fd);
+
   vec_reset_length (f);
   f = format (f, "%v/vpd%c", dev_dir_name, 0);
   fd = open ((char *) f, O_RDONLY);
@@ -268,7 +270,7 @@ vlib_pci_get_device_info (vlib_pci_addr_t * addr, clib_error_t ** error)
        {
          u8 tag[3];
          u8 *data = 0;
-         int len;
+         uword len;
 
          if (read (fd, &tag, 3) != 3)
            break;
@@ -583,8 +585,10 @@ error:
   free (s);
   if (err)
     {
-      close (p->config_fd);
-      close (p->uio_fd);
+      if (p->config_fd != -1)
+       close (p->config_fd);
+      if (p->uio_fd != -1)
+       close (p->uio_fd);
     }
   return err;
 }
@@ -619,7 +623,7 @@ open_vfio_iommu_group (int group)
   s = format (s, "/dev/vfio/%u%c", group, 0);
   fd = open ((char *) s, O_RDWR);
   if (fd < 0)
-    clib_error_return_unix (0, "open '%s'", s);
+    return clib_error_return_unix (0, "open '%s'", s);
 
   group_status.argsz = sizeof (group_status);
   if (ioctl (fd, VFIO_GROUP_GET_STATUS, &group_status) < 0)
@@ -779,8 +783,10 @@ error:
   vec_free (s);
   if (err)
     {
-      close (dfd);
-      close (p->config_fd);
+      if (dfd != -1)
+       close (dfd);
+      if (p->config_fd != -1)
+       close (p->config_fd);
     }
   return err;
 }