[TIPC]: First phase of assert() cleanup

This also contains enhancements to simplify comparisons in name table
publication removal algorithm and to simplify name table sanity checking
when shutting down TIPC.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 26 insertions, 5 deletions

diff --git a/net/tipc/ref.c b/net/tipc/ref.c
index 33bbf509509..d2f0cce10e2 100644
--- a/net/tipc/ref.c
+++ b/net/tipc/ref.c
@@ -127,7 +127,14 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock)
 	u32 next_plus_upper;
 	u32 reference = 0;
 
-	assert(tipc_ref_table.entries && object);
+	if (!object) {
+		err("Attempt to acquire reference to non-existent object\n");
+		return 0;
+	}
+	if (!tipc_ref_table.entries) {
+		err("Reference table not found during acquisition attempt\n");
+		return 0;
+	}
 
 	write_lock_bh(&ref_table_lock);
 	if (tipc_ref_table.first_free) {
@@ -162,15 +169,28 @@ void tipc_ref_discard(u32 ref)
 	u32 index; 
 	u32 index_mask;
 
-	assert(tipc_ref_table.entries);
-	assert(ref != 0);
+	if (!ref) {
+		err("Attempt to discard reference 0\n");
+		return;
+	}
+	if (!tipc_ref_table.entries) {
+		err("Reference table not found during discard attempt\n");
+		return;
+	}
 
 	write_lock_bh(&ref_table_lock);
 	index_mask = tipc_ref_table.index_mask;
 	index = ref & index_mask;
 	entry = &(tipc_ref_table.entries[index]);
-	assert(entry->object != 0);
-	assert(entry->data.reference == ref);
+
+	if (!entry->object) {
+		err("Attempt to discard reference to non-existent object\n");
+		goto exit;
+	}
+	if (entry->data.reference != ref) {
+		err("Attempt to discard non-existent reference\n");
+		goto exit;
+	}
 
 	/* mark entry as unused */
 	entry->object = NULL;
@@ -184,6 +204,7 @@ void tipc_ref_discard(u32 ref)
 
 	/* increment upper bits of entry to invalidate subsequent references */
 	entry->data.next_plus_upper = (ref & ~index_mask) + (index_mask + 1);
+exit:
 	write_unlock_bh(&ref_table_lock);
 }