* [PATCH] serial: sh-sci: Missing uart_unregister_driver() on error in sci_probe_single()
@ 2019-03-08 14:23 Mao Wenan
2019-03-11 7:22 ` Dan Carpenter
0 siblings, 1 reply; 3+ messages in thread
From: Mao Wenan @ 2019-03-08 14:23 UTC (permalink / raw)
To: gregkh, jslaby, linux-serial, kernel-janitors, linux-kernel
Add the missing uart_unregister_driver() before return
from sci_probe_single() in the error handling case.
Signed-off-by: Mao Wenan <maowenan@huawei.com>
---
drivers/tty/serial/sh-sci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 64bbeb7d7e0c..dde4eac9d222 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -3254,8 +3254,10 @@ static int sci_probe_single(struct platform_device *dev,
mutex_unlock(&sci_uart_registration_lock);
ret = sci_init_single(dev, sciport, index, p, false);
- if (ret)
+ if (ret) {
+ uart_unregister_driver(&sci_uart_driver);
return ret;
+ }
sciport->gpios = mctrl_gpio_init(&sciport->port, 0);
if (IS_ERR(sciport->gpios) && PTR_ERR(sciport->gpios) != -ENOSYS)
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] serial: sh-sci: Missing uart_unregister_driver() on error in sci_probe_single()
2019-03-08 14:23 [PATCH] serial: sh-sci: Missing uart_unregister_driver() on error in sci_probe_single() Mao Wenan
@ 2019-03-11 7:22 ` Dan Carpenter
2019-03-11 9:33 ` maowenan
0 siblings, 1 reply; 3+ messages in thread
From: Dan Carpenter @ 2019-03-11 7:22 UTC (permalink / raw)
To: Mao Wenan; +Cc: gregkh, jslaby, linux-serial, kernel-janitors, linux-kernel
On Fri, Mar 08, 2019 at 10:23:10PM +0800, Mao Wenan wrote:
> Add the missing uart_unregister_driver() before return
> from sci_probe_single() in the error handling case.
>
> Signed-off-by: Mao Wenan <maowenan@huawei.com>
> ---
> drivers/tty/serial/sh-sci.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
> index 64bbeb7d7e0c..dde4eac9d222 100644
> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -3254,8 +3254,10 @@ static int sci_probe_single(struct platform_device *dev,
> mutex_unlock(&sci_uart_registration_lock);
>
> ret = sci_init_single(dev, sciport, index, p, false);
> - if (ret)
> + if (ret) {
> + uart_unregister_driver(&sci_uart_driver);
> return ret;
Why only this error path and not the next one?
> + }
>
> sciport->gpios = mctrl_gpio_init(&sciport->port, 0);
> if (IS_ERR(sciport->gpios) && PTR_ERR(sciport->gpios) != -ENOSYS)
^^^^^^^^^^^^^^^^^^^^^
This one.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] serial: sh-sci: Missing uart_unregister_driver() on error in sci_probe_single()
2019-03-11 7:22 ` Dan Carpenter
@ 2019-03-11 9:33 ` maowenan
0 siblings, 0 replies; 3+ messages in thread
From: maowenan @ 2019-03-11 9:33 UTC (permalink / raw)
To: Dan Carpenter; +Cc: gregkh, jslaby, linux-serial, kernel-janitors, linux-kernel
On 2019/3/11 15:22, Dan Carpenter wrote:
> On Fri, Mar 08, 2019 at 10:23:10PM +0800, Mao Wenan wrote:
>> Add the missing uart_unregister_driver() before return
>> from sci_probe_single() in the error handling case.
>>
>> Signed-off-by: Mao Wenan <maowenan@huawei.com>
>> ---
>> drivers/tty/serial/sh-sci.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
>> index 64bbeb7d7e0c..dde4eac9d222 100644
>> --- a/drivers/tty/serial/sh-sci.c
>> +++ b/drivers/tty/serial/sh-sci.c
>> @@ -3254,8 +3254,10 @@ static int sci_probe_single(struct platform_device *dev,
>> mutex_unlock(&sci_uart_registration_lock);
>>
>> ret = sci_init_single(dev, sciport, index, p, false);
>> - if (ret)
>> + if (ret) {
>> + uart_unregister_driver(&sci_uart_driver);
>> return ret;
>
> Why only this error path and not the next one?
>
>> + }
>>
>> sciport->gpios = mctrl_gpio_init(&sciport->port, 0);
>> if (IS_ERR(sciport->gpios) && PTR_ERR(sciport->gpios) != -ENOSYS)
> ^^^^^^^^^^^^^^^^^^^^^
> This one.
yes, this one need it too. resend v2.
thank you.
>
> regards,
> dan carpenter
>
>
> .
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-03-11 9:33 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2019-03-08 14:23 [PATCH] serial: sh-sci: Missing uart_unregister_driver() on error in sci_probe_single() Mao Wenan
2019-03-11 7:22 ` Dan Carpenter
2019-03-11 9:33 ` maowenan
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