6849693: index of fdTable should be less than num. of fdTable in jdk7

Reviewed-by: alanb

jdk/src/solaris/native/java/net/linux_close.c

@@ -112,7 +112,7 @@ static void __attribute((constructor)) init() {
  */
 static inline fdEntry_t *getFdEntry(int fd)
 {
-    if (fd < 0 || fd > fdCount) {
+    if (fd < 0 || fd >= fdCount) {
         return NULL;
     }
     return &fdTable[fd];