ACPI: event: Remove redundant initialization of local variable

'error' will be initialized, so clean up the redundant initialization.

Signed-off-by: Shaokun Zhang <[e-mail]>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <[e-mail]>

drivers/acpi/event.c

···
 
 static int __init acpi_event_init(void)
 {
-	int error = 0;
+	int error;
 
 	if (acpi_disabled)
 		return 0;