USB: serial: clean up endpoint and port-counter types

Use unsigned-char type for the endpoint and port counters.

Signed-off-by: Johan Hovold <johan@kernel.org>

1 files changed, 6 insertions, 5 deletions

diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 704a1ab8240c..85b475933848 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -159,10 +159,10 @@ struct usb_serial {
         unsigned char                   minors_reserved:1;
         unsigned char                   num_ports;
         unsigned char                   num_port_pointers;
-        char                            num_interrupt_in;
-        char                            num_interrupt_out;
-        char                            num_bulk_in;
-        char                            num_bulk_out;
+        unsigned char                   num_interrupt_in;
+        unsigned char                   num_interrupt_out;
+        unsigned char                   num_bulk_in;
+        unsigned char                   num_bulk_out;
         struct usb_serial_port          *port[MAX_NUM_PORTS];
         struct kref                     kref;
         struct mutex                    disc_mutex;
@@ -227,13 +227,14 @@ static inline void usb_set_serial_data(struct usb_serial *serial, void *data)
 struct usb_serial_driver {
         const char *description;
         const struct usb_device_id *id_table;
-        char    num_ports;
 
         struct list_head        driver_list;
         struct device_driver    driver;
         struct usb_driver       *usb_driver;
         struct usb_dynids       dynids;
 
+        unsigned char           num_ports;
+
         size_t                  bulk_in_size;
         size_t                  bulk_out_size;