2012-08-10 05:32:44

by devendra.aaru

Subject:

Hi,

In function tegra_pinctrl_dt_node_to_map the num_maps the num_maps
counter must be incremented for each child node?


Actually we are doing free until num_maps if tegra_pinctrl_dt_subnode_to_map,

not only that if num_maps == 0, we wont free up the maps, and also i
think the for_each_of_node checks whether we have a next child node,
so its safe to do num_maps++ as it wont get incremented endlessly,

Please correct me if i am wrong.

Thanks,


diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c
index ae52e4e..33ae918 100644
--- a/drivers/pinctrl/pinctrl-tegra.c
+++ b/drivers/pinctrl/pinctrl-tegra.c
@@ -303,6 +303,7 @@ int tegra_pinctrl_dt_node_to_map(struct
pinctrl_dev *pctldev,
*num_maps = 0;

for_each_child_of_node(np_config, np) {
+ num_maps++;
ret = tegra_pinctrl_dt_subnode_to_map(pctldev->dev, np, map,
&reserved_maps, num_maps);
if (ret < 0) {

2012-08-10 08:45:44

by Linus Walleij

Subject: Re:

On Fri, Aug 10, 2012 at 7:32 AM, devendra.aaru <[email protected]> wrote:

> In function tegra_pinctrl_dt_node_to_map the num_maps the num_maps
> counter must be incremented for each child node?

I need Stephen Warren to comment on this patch...

Yours,
Linus Walleij

2012-08-10 10:49:38

by Bernd Petrovitsch

Subject: Re:

Hi!

On Fre, 2012-08-10 at 11:02 +0530, devendra.aaru wrote:
[...]
> In function tegra_pinctrl_dt_node_to_map the num_maps the num_maps
> counter must be incremented for each child node?
>
> Actually we are doing free until num_maps if tegra_pinctrl_dt_subnode_to_map,
>
> not only that if num_maps == 0, we wont free up the maps, and also i
> think the for_each_of_node checks whether we have a next child node,
> so its safe to do num_maps++ as it wont get incremented endlessly,
[...]

Not that I looked into the source but ....

> diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c
> index ae52e4e..33ae918 100644
> --- a/drivers/pinctrl/pinctrl-tegra.c
> +++ b/drivers/pinctrl/pinctrl-tegra.c
> @@ -303,6 +303,7 @@ int tegra_pinctrl_dt_node_to_map(struct
> pinctrl_dev *pctldev,
... num_maps appears to be a pointer to the counter here and ...
> *num_maps = 0;
>
> for_each_child_of_node(np_config, np) {
... here you increment the pointer as such and where it points to (which
appears to be the counter).
> + num_maps++;
> ret = tegra_pinctrl_dt_subnode_to_map(pctldev->dev, np, map,
> &reserved_maps, num_maps);
> if (ret < 0) {

Kinf regards,
Bernd
--
Bernd Petrovitsch Email : [email protected]
LUGA : http://www.luga.at