[POWERPC] Rename get_property to of_get_property: the last one

This also fixes a bug where a property value was being modified
in place.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/cell/cbe_cpufreq.c

@@ -126,7 +126,8 @@ static int set_pmode(int cpu, unsigned int pmode)
 
 static int cbe_cpufreq_cpu_init (struct cpufreq_policy *policy)
 {
-	u32 *max_freq;
+	const u32 *max_freqp;
+	u32 max_freq;
 	int i, cur_pmode;
 	struct device_node *cpu;
 
@@ -137,20 +138,20 @@ static int cbe_cpufreq_cpu_init (struct cpufreq_policy *policy)
 
 	pr_debug("init cpufreq on CPU %d\n", policy->cpu);
 
-	max_freq = (u32*) get_property(cpu, "clock-frequency", NULL);
+	max_freqp = of_get_property(cpu, "clock-frequency", NULL);
 
-	if(!max_freq)
+	if (!max_freqp)
 		return -EINVAL;
 
 	// we need the freq in kHz
-	*max_freq /= 1000;
+	max_freq = *max_freqp / 1000;
 
-	pr_debug("max clock-frequency is at %u kHz\n", *max_freq);
+	pr_debug("max clock-frequency is at %u kHz\n", max_freq);
 	pr_debug("initializing frequency table\n");
 
 	// initialize frequency table
 	for (i=0; cbe_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) {
-		cbe_freqs[i].frequency = *max_freq / cbe_freqs[i].index;
+		cbe_freqs[i].frequency = max_freq / cbe_freqs[i].index;
 		pr_debug("%d: %d\n", i, cbe_freqs[i].frequency);
 	}