ACPI: Remove redundant clearing of context->ret.pointer from acpi_run_osc()

context->ret.pointer already gets set to NULL at the beginning of
acpi_run_osc() and it only gets assigned a new value in the success
path near the end of acpi_run_osc(), so the clearing of
context->ret.pointer (when status != AE_OK) at the end of
acpi_run_osc() is redundant since it will always already be NULL when
status != AE_OK.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/bus.c

@@ -262,8 +262,6 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
 
 out_kfree:
 	kfree(output.pointer);
-	if (status != AE_OK)
-		context->ret.pointer = NULL;
 	return status;
 }
 EXPORT_SYMBOL(acpi_run_osc);