OS-1571 Placate gcc -Wparentheses
Reviewed by: Robert Mustacchi <rm@joyent.com>

*** 552,562 ****
  
          /*
           * Get vnode for the real file/dir. We'll have a hold on realvp which
           * we won't vn_rele until hyprlofs_inactive.
           */
!         if (error = lookupname(fspath, UIO_SYSSPACE, FOLLOW, NULLVPP, &realvp))
                  return (error);
  
          /* no devices allowed */
          if (IS_DEVVP(realvp)) {
                  VN_RELE(realvp);
--- 552,563 ----
  
          /*
           * Get vnode for the real file/dir. We'll have a hold on realvp which
           * we won't vn_rele until hyprlofs_inactive.
           */
!         if ((error = lookupname(fspath, UIO_SYSSPACE, FOLLOW, NULLVPP,
!             &realvp)) != 0)
                  return (error);
  
          /* no devices allowed */
          if (IS_DEVVP(realvp)) {
                  VN_RELE(realvp);
*** 579,589 ****
           * important when fspath is a trigger AUTOFS node, since we're really
           * interested in mounting the filesystem AUTOFS mounted as result of
           * the VOP_ACCESS() call not the AUTOFS node itself.
           */
          if (vn_mountedvfs(realvp) != NULL) {
!                 if (error = traverse(&realvp)) {
                          VN_RELE(realvp);
                          return (error);
                  }
          }
  
--- 580,590 ----
           * important when fspath is a trigger AUTOFS node, since we're really
           * interested in mounting the filesystem AUTOFS mounted as result of
           * the VOP_ACCESS() call not the AUTOFS node itself.
           */
          if (vn_mountedvfs(realvp) != NULL) {
!                 if ((error = traverse(&realvp)) != 0) {
                          VN_RELE(realvp);
                          return (error);
                  }
          }