Properly handle Super-I/O chips without logical device. Just report

that we can't support the chip yet, instead of spitting I/O errors.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@6016 7894878c-1315-0410-8ee3-d5d059ff63e0

CHANGES

@@ -16,6 +16,7 @@ SVN HEAD
                   Make LM73 detection less problematic
                   Add detection of National Semiconductor LM96163
                   Add detection of GMT G781
+                  Properly handle Super-I/O chips without logical device
 
 3.3.1 (2011-07-21)
   isadump: Add support for word (16-bit) and long (32-bit) reads

prog/detect/sensors-detect

@@ -3766,6 +3766,10 @@ sub probe_superio
 		print "\n    (hardware monitoring capabilities accessible via SMBus only)\n";
 		return FEAT_SMBUS;
 	}
+	if (!exists $chip->{logdev}) {
+		print "\n    (no support yet)\n";
+		return 0;
+	}
 
 	# Switch to the sensor logical device
 	outb($addrreg, $superio{logdevreg});