diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-12 18:46:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-12 18:46:07 +0200 |
| commit | 0c80bdfc9aa624b4a6c33c30ad11e81bf6407c36 (patch) | |
| tree | caea5044f1bd46b56c9894a23c629ef4bf93a5ce /drivers/tty/serial/serial_core.c | |
| parent | bfa54a793ba77ef696755b66f3ac4ed00c7d1248 (diff) | |
| parent | 7c626ce4bae1ac14f60076d00eafe71af30450ba (diff) | |
Merge 6.11-rc3 into driver-core-next
We need the driver core fixes in here as well to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/serial_core.c')
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 9a18d0b95a41..5bea3af46abc 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -881,6 +881,14 @@ static int uart_set_info(struct tty_struct *tty, struct tty_port *port, new_flags = (__force upf_t)new_info->flags; old_custom_divisor = uport->custom_divisor; + if (!(uport->flags & UPF_FIXED_PORT)) { + unsigned int uartclk = new_info->baud_base * 16; + /* check needs to be done here before other settings made */ + if (uartclk == 0) { + retval = -EINVAL; + goto exit; + } + } if (!capable(CAP_SYS_ADMIN)) { retval = -EPERM; if (change_irq || change_port || |