Fix harmless compiler warnings.

FossilOrigin-Name: 92dc59132f8547635d73c61c21ea29b380c401ddc84a6d01412808e00386b9e8

4 files changed, 4 insertions, 5 deletions

diff --git a/src/btree.c b/src/btree.c
index 8ac3374dd..972063bfa 100644
--- a/src/btree.c
+++ b/src/btree.c
@@ -2304,8 +2304,7 @@ static int btreeInvokeBusyHandler(void *pArg){
   BtShared *pBt = (BtShared*)pArg;
   assert( pBt->db );
   assert( sqlite3_mutex_held(pBt->db->mutex) );
-  return sqlite3InvokeBusyHandler(&pBt->db->busyHandler,
-                                  sqlite3PagerFile(pBt->pPager));
+  return sqlite3InvokeBusyHandler(&pBt->db->busyHandler);
 }
 
 /*
diff --git a/src/main.c b/src/main.c
index 0bc8edfec..83ba434be 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1664,7 +1664,7 @@ static int sqliteDefaultBusyCallback(
 ** If this routine returns non-zero, the lock is retried.  If it
 ** returns 0, the operation aborts with an SQLITE_BUSY error.
 */
-int sqlite3InvokeBusyHandler(BusyHandler *p, sqlite3_file *pFile){
+int sqlite3InvokeBusyHandler(BusyHandler *p){
   int rc;
   if( p->xBusyHandler==0 || p->nBusy<0 ) return 0;
   rc = p->xBusyHandler(p->pBusyArg, p->nBusy);
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index b01f32393..5ae69e873 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -4584,7 +4584,7 @@ void sqlite3RenameExprlistUnmap(Parse*, ExprList*);
 CollSeq *sqlite3GetCollSeq(Parse*, u8, CollSeq *, const char*);
 char sqlite3AffinityType(const char*, Column*);
 void sqlite3Analyze(Parse*, Token*, Token*);
-int sqlite3InvokeBusyHandler(BusyHandler*, sqlite3_file*);
+int sqlite3InvokeBusyHandler(BusyHandler*);
 int sqlite3FindDb(sqlite3*, Token*);
 int sqlite3FindDbName(sqlite3 *, const char *);
 int sqlite3AnalysisLoad(sqlite3*,int iDB);
diff --git a/src/wal.c b/src/wal.c
index d9e9ef177..d3db4b27b 100644
--- a/src/wal.c
+++ b/src/wal.c
@@ -3695,7 +3695,7 @@ int sqlite3WalCheckpoint(
   /* Enable blocking locks, if possible. If blocking locks are successfully
   ** enabled, set xBusy2=0 so that the busy-handler is never invoked. */
   sqlite3WalDb(pWal, db);
-  walEnableBlocking(pWal);
+  (void)walEnableBlocking(pWal);
 
   /* IMPLEMENTATION-OF: R-62028-47212 All calls obtain an exclusive 
   ** "checkpoint" lock on the database file.