diff options
Diffstat (limited to 'c/src/libchip/serial/z85c30.c')
| -rw-r--r-- | c/src/libchip/serial/z85c30.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/c/src/libchip/serial/z85c30.c b/c/src/libchip/serial/z85c30.c index 4b1b4227b6..1f43271dd0 100644 --- a/c/src/libchip/serial/z85c30.c +++ b/c/src/libchip/serial/z85c30.c @@ -437,6 +437,7 @@ Z85C30_STATIC int z85c30_set_attributes( uint32_t wr4; uint32_t wr5; int baud_requested; + uint32_t baud_number; setRegister_f setReg; rtems_interrupt_level Irql; @@ -445,15 +446,20 @@ Z85C30_STATIC int z85c30_set_attributes( /* * Calculate the baud rate divisor + * + * Assert ensures there is no division by 0. */ baud_requested = t->c_cflag & CBAUD; if (!baud_requested) baud_requested = B9600; /* default to 9600 baud */ + baud_number = (uint32_t) rtems_termios_baud_to_number( baud_requested ); + _Assert( baud_number != 0 ); + ulBaudDivisor = Z85C30_Baud( (uint32_t) Console_Port_Tbl[minor]->ulClock, - (uint32_t) rtems_termios_baud_to_number( baud_requested ) + baud_number ); wr3 = SCC_WR3_RX_EN; |