usb: typec: fusb302: Add __printf attribute to fusb302_log function

Add __printf attribute to fusb302_log function, so that we get
compiler warnings when specifying wrong vararg parameters.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index 0029d7a..261b829 100644 (file)
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -125,13 +125,13 @@ struct fusb302_chip {
  */
 
 #ifdef CONFIG_DEBUG_FS
-
 static bool fusb302_log_full(struct fusb302_chip *chip)
 {
        return chip->logbuffer_tail ==
                (chip->logbuffer_head + 1) % LOG_BUFFER_ENTRIES;
 }
 
+__printf(2, 0)
 static void _fusb302_log(struct fusb302_chip *chip, const char *fmt,
                         va_list args)
 {