[PATCH] device/net_io.c: initialize hash_entp to NULL

[Marin Ramesa]

* device/net_io.c (hash_entp): Initialize to NET_HASH_ENTRY_NULL.

---
 device/net_io.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/device/net_io.c b/device/net_io.c
index 1958840..40fe8f6 100644
--- a/device/net_io.c
+++ b/device/net_io.c
@@ -324,6 +324,7 @@ struct net_hash_entry {
        unsigned int    keys[N_NET_HASH_KEYS];
 };
 typedef struct net_hash_entry *net_hash_entry_t;
+#define NET_HASH_ENTRY_NULL ((net_hash_entry_t)0)
 
 struct kmem_cache      net_hash_entry_cache;
 
@@ -1158,7 +1159,7 @@ net_set_filter(ifp, rcv_port, priority, filter, 
filter_count)
     net_rcv_port_t             infp, my_infp;
     net_rcv_port_t             nextfp;
     net_hash_header_t          hhp;
-    net_hash_entry_t           entp, hash_entp;
+    net_hash_entry_t           entp;
     net_hash_entry_t           *head, nextentp;
     queue_entry_t              dead_infp, dead_entp;
     int                                i;
@@ -1166,6 +1167,13 @@ net_set_filter(ifp, rcv_port, priority, filter, 
filter_count)
     io_return_t                        rval;
     boolean_t                  in, out;
 
+    /* Initialize hash_entp to NET_HASH_ENTRY_NULL to quiet GCC 
+     * warning about uninitialized variable. hash_entp is only 
+     * used when match != 0; in that case it is properly initialized 
+     * by kmem_cache_alloc().
+     */
+    net_hash_entry_t hash_entp = NET_HASH_ENTRY_NULL;
+
     /*
      * Check the filter syntax.
      */
-- 
1.8.1.4