Messages in this thread Patch in this message | | | From | Chen Ni <> | Subject | [PATCH] tty: serial: ma35d1_serial: Add missing check for ioremap | Date | Fri, 15 Sep 2023 07:11:06 +0000 |
| |
Add check for ioremap() and return the error if it fails in order to guarantee the success of ioremap().
Fixes: 930cbf92db01 ("tty: serial: Add Nuvoton ma35d1 serial driver support") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> --- drivers/tty/serial/ma35d1_serial.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/tty/serial/ma35d1_serial.c b/drivers/tty/serial/ma35d1_serial.c index 465b1def9e11..4a9d1252de35 100644 --- a/drivers/tty/serial/ma35d1_serial.c +++ b/drivers/tty/serial/ma35d1_serial.c @@ -695,6 +695,9 @@ static int ma35d1serial_probe(struct platform_device *pdev) up->port.iobase = res_mem->start; up->port.membase = ioremap(up->port.iobase, MA35_UART_REG_SIZE); + if (!up->port.membase) + return -ENOMEM; + up->port.ops = &ma35d1serial_ops; spin_lock_init(&up->port.lock); -- 2.25.1
| |