On Sun, Jul 10, 2022 at 09:37:10AM +0800, Liang He wrote:
> At 2022-07-09 12:49:23, "Dmitry Torokhov" <dmitry.torokhov@xxxxxxxxx> wrote:
> >Hi Liang,
> >
> >On Sun, Jun 19, 2022 at 03:30:36PM +0800, Liang He wrote:
> >> In i8042_platform_init() and i8042_platform_exit(), we need call
> >> of_node_put() to keep refcount balance.
> >>
> >> Signed-off-by: Liang He <windhl@xxxxxxx>
> >> ---
> >> drivers/input/serio/i8042-sparcio.h | 4 ++++
> >> 1 file changed, 4 insertions(+)
> >>
> >> diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h
> >> index fce76812843b..a2a9db9220d7 100644
> >> --- a/drivers/input/serio/i8042-sparcio.h
> >> +++ b/drivers/input/serio/i8042-sparcio.h
> >> @@ -108,6 +108,8 @@ static int __init i8042_platform_init(void)
> >> struct device_node *root = of_find_node_by_path("/");
> >> const char *name = of_get_property(root, "name", NULL);
> >>
> >> + of_node_put(root);
> >> +
> >> if (name && !strcmp(name, "SUNW,JavaStation-1")) {
> >> /* Hardcoded values for MrCoffee. */
> >> i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
> >> @@ -139,6 +141,8 @@ static inline void i8042_platform_exit(void)
> >> struct device_node *root = of_find_node_by_path("/");
> >> const char *name = of_get_property(root, "name", NULL);
> >>
> >> + of_node_put(root);
> >> +
> >> if (!name || strcmp(name, "SUNW,JavaStation-1"))
> >> platform_driver_unregister(&sparc_i8042_driver);
> >> }
> >
> >There already was an attempt to fix this issue in a slightly better way,
> >unfortunately the original author did not finish the work:
> >
> >https://lore.kernel.org/all/20181212163548.23723-1-tiny.windzz@xxxxxxxxx/
> >
> >Thanks.
> >
> >--
> >Dmitry
>
> Hi, Dmirtry,
>
> Thanks for reviewing my patch code.
>
> The Li's patch adds a helper and is better than mine.
Right, however there is a compile error in Li's version. It would be
great if someone could finish their work.
Thanks.
--
Dmitry
