[kservice] add return value's comment
@@ -844,10 +844,7 @@ static char *print_number(char *buf,
*
* @return The number of characters actually written to buffer.
*/
-RT_WEAK int rt_vsnprintf(char *buf,
- rt_size_t size,
- const char *fmt,
- va_list args)
+RT_WEAK int rt_vsnprintf(char *buf, rt_size_t size, const char *fmt, va_list args)
{
#ifdef RT_PRINTF_LONGLONG
unsigned long long num;
@@ -1260,6 +1257,8 @@ void rt_kputs(const char *str)
* This function will print a formatted string on system console.
*
* @param fmt is the format parameters.
+ *
+ * @return The number of characters actually written to buffer.
*/
RT_WEAK int rt_kprintf(const char *fmt, ...)
{
@@ -1290,7 +1289,7 @@ RT_WEAK int rt_kprintf(const char *fmt, ...)
#endif /* RT_USING_DEVICE */
va_end(args);
- return length; /* the total number of printed characters */
+ return length;
}
RTM_EXPORT(rt_kprintf);
#endif /* RT_USING_CONSOLE */
