remove warning

1 files changed, 1 insertions, 0 deletions

diff --git a/libopie2/opiecore/oinputsystem.cpp b/libopie2/opiecore/oinputsystem.cpp
index f9078d6..7397814 100644
--- a/libopie2/opiecore/oinputsystem.cpp
+++ b/libopie2/opiecore/oinputsystem.cpp
@@ -70,152 +70,153 @@ void OInputSystem::synchronize()
         for ( QStringList::Iterator it = devInputFiles.begin(); it != devInputFiles.end(); ++it )
         {
             QString absPath = devInput.absFilePath( *it );
             bool isValid = OInputDevice::isValid( absPath );
             qDebug( "OInputSystem::synchronize() - checking if '%s' is a valid input system node... '%s' [%s]",
             (const char*) absPath, isValid ? "yes" : "no", isValid ? "(ok)" : strerror( errno ) );
             if ( isValid ) _devices.insert( *it, new OInputDevice( this, absPath ) );
         }
     }
     qDebug( "OInputSystem::synchronize() done" );
     if ( !_devices.count() )
     qWarning( "OInputSystem::no devices found" );
 }
 
 
 OInputSystem::~OInputSystem()
 {
     qDebug( "OInputSystem::~OInputSystem()" );
 }
 
 
 int OInputSystem::count() const
 {
     return _devices.count();
 }
 
 
 OInputDevice* OInputSystem::device( const QString& device ) const
 {
     return _devices[device];
 }
 
 
 OInputSystem* OInputSystem::instance()
 {
     if ( !_instance ) _instance = new OInputSystem();
     return _instance;
 }
 
 
 OInputSystem::DeviceIterator OInputSystem::iterator() const
 {
     return OInputSystem::DeviceIterator( _devices );
 }
 
 /*======================================================================================
  * OInputDevice
  *======================================================================================*/
 
 OInputDevice::OInputDevice( QObject* parent, const char* name ) : QObject( parent, name )
 {
     qDebug( "OInputDevice::OInputDevice( '%s' )", name );
 
     _fd = ::open( name, O_RDONLY );
     if ( _fd == -1 )
     {
         qDebug( "OInputDevice::OInputDevice() - Warning: couldn't open %s (%s)", name, strerror( errno ) );
     }
 }
 
 
 OInputDevice::~OInputDevice()
 {
     qDebug( "OInputDevice::~OInputDevice()" );
 }
 
 
 QString OInputDevice::identity() const
 {
     char buf[BUFSIZE] = "<unknown>";
     ::ioctl( _fd, EVIOCGNAME(sizeof buf), buf );
     return buf;
 }
 
 
 QString OInputDevice::path() const
 {
     char buf[BUFSIZE] = "<unknown>";
     ::ioctl( _fd, EVIOCGPHYS(sizeof buf), buf );
     return buf;
 }
 
 
 QString OInputDevice::uniq() const
 {
     char buf[BUFSIZE] = "<unknown>";
     ::ioctl( _fd, EVIOCGUNIQ(sizeof buf), buf );
     return buf;
 }
 
 
 bool OInputDevice::hasFeature( Feature bit ) const
 {
     BIT_MASK( features, EV_MAX );
 
     if( ioctl( _fd, EVIOCGBIT( 0, EV_MAX ), features) < 0 )
     {
         perror( "EVIOCGBIT" );
         return false;
     }
     else
         return BIT_TEST( features, bit );
 }
 
 
 bool OInputDevice::isHeld( Key bit ) const
 {
     BIT_MASK( keys, KEY_MAX );
 
     if( ioctl( _fd, EVIOCGKEY( sizeof(keys) ), keys ) < 0 )
     {
         perror( "EVIOCGKEY" );
         return false;
     }
     else
     {
         return BIT_TEST( keys, bit );
     }
 }
 
 
 QString OInputDevice::globalKeyMask() const
 {
     BIT_MASK( keys, KEY_MAX );
 
     if( ioctl( _fd, EVIOCGKEY( sizeof(keys) ), keys ) < 0 )
     {
         perror( "EVIOCGKEY" );
+        return QString::null;
     }
     else
     {
         QString keymask;
         for ( int i = 0; i < KEY_MAX; ++i )
         {
             if ( BIT_TEST( keys, i ) ) keymask.append( QString().sprintf( "%0d, ", i ) );
         }
         return keymask;
 
     }
 }
 
 
 bool OInputDevice::isValid( const QString& path )
 {
     char buf[BUFSIZE] = "<unknown>";
     int fd = ::open( (const char*) path, O_RDONLY );
     if ( fd < 0 ) return false;
     int res = ::ioctl( fd, EVIOCGNAME(sizeof buf), buf );
     ::close( fd );
     return res >= 0;
 }