ACPI: repair nvidia early quirk breakage on x86_64

x86_64 nvidia_bugs() broke when we bailed out on not finding the HPET.
However, the quirk works by checking for not finding the HPET...

Delete the nvidia_hpet_detected flag and simply test for
not finding the HPET, which is simple to do now that
acpi_table_parse returns 1 on failure.
Signed-off-by: Len Brown <len.brown@intel.com>

arch/i386/kernel/acpi/earlyquirk.c

@@ -14,11 +14,8 @@
 
 #ifdef CONFIG_ACPI
 
-static int nvidia_hpet_detected __initdata;
-
 static int __init nvidia_hpet_check(struct acpi_table_header *header)
 {
-	nvidia_hpet_detected = 1;
 	return 0;
 }
 #endif
@@ -29,9 +26,7 @@ static int __init check_bridge(int vendor, int device)
 	/* According to Nvidia all timer overrides are bogus unless HPET
 	   is enabled. */
 	if (!acpi_use_timer_override && vendor == PCI_VENDOR_ID_NVIDIA) {
-		nvidia_hpet_detected = 0;
-		acpi_table_parse(ACPI_SIG_HPET, nvidia_hpet_check);
-		if (nvidia_hpet_detected == 0) {
+		if (acpi_table_parse(ACPI_SIG_HPET, nvidia_hpet_check)) {
 			acpi_skip_timer_override = 1;
 			  printk(KERN_INFO "Nvidia board "
                        "detected. Ignoring ACPI "

arch/x86_64/kernel/early-quirks.c

@@ -30,11 +30,8 @@ static void via_bugs(void)
 
 #ifdef CONFIG_ACPI
 
-static int nvidia_hpet_detected __initdata;
-
 static int __init nvidia_hpet_check(struct acpi_table_header *header)
 {
-	nvidia_hpet_detected = 1;
 	return 0;
 }
 #endif
@@ -52,11 +49,7 @@ static void nvidia_bugs(void)
 	if (acpi_use_timer_override)
 		return;
 
-	nvidia_hpet_detected = 0;
-	if (acpi_table_parse(ACPI_SIG_HPET, nvidia_hpet_check))
-		return;
-
-	if (nvidia_hpet_detected == 0) {
+	if (acpi_table_parse(ACPI_SIG_HPET, nvidia_hpet_check)) {
 		acpi_skip_timer_override = 1;
 		printk(KERN_INFO "Nvidia board "
 		       "detected. Ignoring ACPI "