1 files changed, 14 insertions, 10 deletions

diff --git a/libopie2/opiecore/device/odevice_palm.cpp b/libopie2/opiecore/device/odevice_palm.cpp
index 399c08c..d40dfce 100644
--- a/libopie2/opiecore/device/odevice_palm.cpp
+++ b/libopie2/opiecore/device/odevice_palm.cpp
@@ -138,147 +138,151 @@ void Palm::init(const QString& cpu_info)
 
 
 void Palm::initButtons()
 {
 
     if ( d->m_buttons )
         return ;
 
     if ( isQWS( ) ) {
 	addPreHandler(this);
     }
 
     d->m_buttons = new QValueList <ODeviceButton>;
 
     for ( uint i = 0; i < ( sizeof( palm_buttons ) / sizeof( palm_button ) ); i++ )
     {
 	palm_button *ib = palm_buttons + i;
         ODeviceButton b;
 
 	if (( ib->model & d->m_model ) == d->m_model ) {
 	    b. setKeycode ( ib->code );
 	    b. setUserText ( QObject::tr ( "Button", ib->utext ));
 	    b. setPixmap ( OResource::loadPixmap ( ib->pix ));
 	    b. setFactoryPresetPressedAction ( OQCopMessage ( makeChannel ( ib->fpressedservice ), ib->fpressedaction ));
 	    b. setFactoryPresetHeldAction ( OQCopMessage ( makeChannel ( ib->fheldservice ), ib->fheldaction ));
 
 	    d->m_buttons->append ( b );
 	}
     }
     reloadButtonMapping();
 }
 
 
 bool Palm::filter ( int /*unicode*/, int keycode, int modifiers, bool isPress, bool autoRepeat )
 {
     int newkeycode = keycode;
 
     if (qt_screen->transformOrientation() != Rot0){
 
         switch ( keycode ) {
 	    case Key_Left :
             case Key_Right:
             case Key_Up   :
             case Key_Down :
 		    newkeycode = Key_Left + ( keycode - Key_Left + (int) qt_screen->transformOrientation() ) % 4;
 	    default:
 		break;
         }
-    
+
         if (newkeycode!=keycode) {
             if ( newkeycode != Key_unknown ) {
                 QWSServer::sendKeyEvent ( -1, newkeycode, modifiers, isPress, autoRepeat );
             }
             return true;
         }
 
     }
-  
+
     return false;
 }
 
 
 bool Palm::suspend()
 {
     // some Palms do not implement their own power management at the moment.
 
     bool res = false;
 
     if ( !isQWS( ) ) // only qwsserver is allowed to suspend
         return false;
 
     switch ( d->m_model ) {
         case Model_Palm_LD:
         case Model_Palm_Z72:
         {
             QCopChannel::send( "QPE/System", "aboutToSuspend()" );
 
             ::sync(); // flush fs caches
             res = ( ::system ( "apm --suspend" ) == 0 );
 
             QCopChannel::send( "QPE/System", "returnFromSuspend()" );
         }
         break;
 	default:
 	break;
     }
 
     return res;
 }
 
 
 int Palm::displayBrightnessResolution() const
 {
     int res = 1;
+    int fd = -1;
 
     switch ( d->m_model )
     {
       case Model_Palm_LD:
       case Model_Palm_TX:
       case Model_Palm_Z72:
-        int fd = ::open( m_backlightdev + "max_brightness", O_RDONLY|O_NONBLOCK );
-        if ( fd )
+        fd = ::open( m_backlightdev + "max_brightness", O_RDONLY|O_NONBLOCK );
+        if ( fd != -1)
         {
           char buf[100];
-          if ( ::read( fd, &buf[0], sizeof buf ) ) ::sscanf( &buf[0], "%d", &res );
+          if ( ::read( fd, &buf[0], sizeof buf ) > 0 )
+              ::sscanf( &buf[0], "%d", &res );
           ::close( fd );
         }
 	break;
 
       default:
 	res = 1;
     }
- 
+
     return res;
 }
 
 
 bool Palm::setDisplayBrightness( int bright )
 {
     bool res = false;
 
     if ( bright > 255 ) bright = 255;
     if ( bright < 0 ) bright = 0;
 
     int numberOfSteps = displayBrightnessResolution();
     int val = ( bright == 1 ) ? 1 : ( bright * numberOfSteps ) / 255;
+    int fd = -1;
 
     switch ( d->m_model )
     {
 
       case Model_Palm_LD:
       case Model_Palm_TX:
       case Model_Palm_Z72:
-        int fd = ::open( m_backlightdev + "brightness", O_WRONLY|O_NONBLOCK );
-        if ( fd )
+        fd = ::open( m_backlightdev + "brightness", O_WRONLY|O_NONBLOCK );
+        if ( fd  != -1 )
         {
             char buf[100];
             int len = ::snprintf( &buf[0], sizeof buf, "%d", val );
             res = ( ::write( fd, &buf[0], len ) == 0 );
             ::close( fd );
         }
         break;
-      
-      default: res = false;
+
+      default:
+        res = false;
     }
     return res;
 }