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
@@ -134,88 +134,89 @@ 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;
 }