[CPUFREQ] Fix reset-to-max-speed on unloading of longhaul driver.

From: Sven Traenkle

The second part adresses a problem of resetting the max cpu-freq when
unloading the driver. This didn't work for my cpu and I doubt it does
for other. There is no need to pass the computed index of the max.
multiplier in the clock_ratio[] table to longhault_table[] cause the
longhaul_setstate function works with the clock_ratio[] index.
                                                                                                          
Changing the while loop to a for loop with upper limit isn't actually
necessary as long as the driver is bug free, but thats IMHO not yet the
case, so I suggest this change in order to not loop endlessly or read
beyond the limits of the clock_ratio array.
Signed-off-by: Dave Jones <davej@redhat.com>

arch/i386/kernel/cpu/cpufreq/longhaul.c

@@ -638,13 +638,13 @@ static int __init longhaul_init(void)
 static void __exit longhaul_exit(void)
 {
 	int i=0;
-	unsigned int new_clock_ratio;
 
-	while (clock_ratio[i] != maxmult)
-		i++;
-
-	new_clock_ratio = longhaul_table[i].index & 0xFF;
-	longhaul_setstate(new_clock_ratio);
+	for (i=0; i < numscales; i++) {
+		if (clock_ratio[i] == maxmult) {
+			longhaul_setstate(i);
+			break;
+		}
+	}
 
 	cpufreq_unregister_driver(&longhaul_driver);
 	kfree(longhaul_table);