ACPI: Remove unnecessary from/to-void* and to-void casts in drivers/acpi

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index d044ec5..0ec7dcd 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -259,7 +259,7 @@
 static int acpi_processor_throttling_seq_show(struct seq_file *seq,
 					      void *offset)
 {
-	struct acpi_processor *pr = (struct acpi_processor *)seq->private;
+	struct acpi_processor *pr = seq->private;
 	int i = 0;
 	int result = 0;
 
@@ -307,8 +307,8 @@
 					       size_t count, loff_t * data)
 {
 	int result = 0;
-	struct seq_file *m = (struct seq_file *)file->private_data;
-	struct acpi_processor *pr = (struct acpi_processor *)m->private;
+	struct seq_file *m = file->private_data;
+	struct acpi_processor *pr = m->private;
 	char state_string[12] = { '\0' };