* [PATCH] tty: serial: ma35d1_serial: Add missing check for ioremap
@ 2023-09-15 7:11 Chen Ni
2023-09-15 9:49 ` Jacky Huang
0 siblings, 1 reply; 3+ messages in thread
From: Chen Ni @ 2023-09-15 7:11 UTC (permalink / raw)
To: ychuang3, schung, gregkh, jirislaby, ilpo.jarvinen
Cc: linux-arm-kernel, linux-kernel, linux-serial, Chen Ni
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
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] tty: serial: ma35d1_serial: Add missing check for ioremap
2023-09-15 7:11 [PATCH] tty: serial: ma35d1_serial: Add missing check for ioremap Chen Ni
@ 2023-09-15 9:49 ` Jacky Huang
0 siblings, 0 replies; 3+ messages in thread
From: Jacky Huang @ 2023-09-15 9:49 UTC (permalink / raw)
To: Chen Ni, ychuang3, schung, gregkh, jirislaby, ilpo.jarvinen
Cc: linux-arm-kernel, linux-kernel, linux-serial
On 2023/9/15 下午 03:11, Chen Ni wrote:
> CAUTION - External Email: Do not click links or open attachments unless you acknowledge the sender and content.
>
>
> 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
>
Thank you for this update.
Acked-by: Jacky Huang <ychuang3@nuvoton.com>
Best Regards,
Jacky
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] tty: serial: ma35d1_serial: Add missing check for ioremap
@ 2023-09-04 3:40 Chen Ni
0 siblings, 0 replies; 3+ messages in thread
From: Chen Ni @ 2023-09-04 3:40 UTC (permalink / raw)
To: ychuang3, schung, gregkh, jirislaby, ilpo.jarvinen
Cc: linux-arm-kernel, linux-kernel, linux-serial, Chen Ni
Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap(), same as in
ma35d1serial_console_setup().
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..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);
--
2.25.1
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-09-15 9:50 UTC | newest]
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