diff options
| author | Chen Ni <nichen@iscas.ac.cn> | 2023-09-15 07:11:06 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-09-18 11:14:42 +0200 |
| commit | 4556c36f4a23fb218763cdb7a20f6a94f4faf1f8 (patch) | |
| tree | 901a067342c60e684075f82a2f6f578c4aa455fe /drivers/tty/serial/ma35d1_serial.c | |
| parent | ce9ecca0238b140b88f43859b211c9fdfd8e5b70 (diff) | |
tty: serial: ma35d1_serial: Add missing check for ioremap
Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap().
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Jacky Huang <ychuang3@nuvoton.com>
Link: https://lore.kernel.org/r/20230915071106.3347-1-nichen@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/ma35d1_serial.c')
| -rw-r--r-- | drivers/tty/serial/ma35d1_serial.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/serial/ma35d1_serial.c b/drivers/tty/serial/ma35d1_serial.c index 465b1def9e11..dbfcb711e710 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); |