* [PATCH] pda_power: remove ac_draw_failed goto and label
@ 2012-09-21 0:56 Paul Parsons
2012-09-21 23:51 ` Anton Vorontsov
0 siblings, 1 reply; 3+ messages in thread
From: Paul Parsons @ 2012-09-21 0:56 UTC (permalink / raw)
To: cbou, dwmw2; +Cc: philipp.zabel, linux-kernel
A previous patch added the ac_draw_failed goto and label to
pda_power_probe(). The goto would be invoked after a failed call to
regulator_get().
However the way ac_draw is used - always after a check for NULL -
suggests that a failed call to regulator_get() was not fatal.
This patch removes the ac_draw_failed goto and label, partly reverting
the previous patch.
This patch also removes the assignment of an error code to ret after a
failed call to regulator_get(), since the error code is now never used.
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
---
drivers/power/pda_power.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index d3be834d..7df7c5f 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -284,9 +284,7 @@ static int pda_power_probe(struct platform_device *pdev)
ac_draw = regulator_get(dev, "ac_draw");
if (IS_ERR(ac_draw)) {
dev_dbg(dev, "couldn't get ac_draw regulator\n");
- ret = PTR_ERR(ac_draw);
ac_draw = NULL;
- goto ac_draw_failed;
}
update_status();
@@ -416,7 +414,6 @@ ac_supply_failed:
regulator_put(ac_draw);
ac_draw = NULL;
}
-ac_draw_failed:
if (pdata->exit)
pdata->exit(dev);
init_failed:
--
1.7.8.6
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] pda_power: remove ac_draw_failed goto and label
2012-09-21 0:56 [PATCH] pda_power: remove ac_draw_failed goto and label Paul Parsons
@ 2012-09-21 23:51 ` Anton Vorontsov
2012-09-22 0:59 ` Paul Parsons
0 siblings, 1 reply; 3+ messages in thread
From: Anton Vorontsov @ 2012-09-21 23:51 UTC (permalink / raw)
To: Paul Parsons; +Cc: dwmw2, philipp.zabel, linux-kernel
On Fri, Sep 21, 2012 at 01:56:43AM +0100, Paul Parsons wrote:
> A previous patch added the ac_draw_failed goto and label to
> pda_power_probe(). The goto would be invoked after a failed call to
> regulator_get().
>
> However the way ac_draw is used - always after a check for NULL -
> suggests that a failed call to regulator_get() was not fatal.
>
> This patch removes the ac_draw_failed goto and label, partly reverting
> the previous patch.
>
> This patch also removes the assignment of an error code to ret after a
> failed call to regulator_get(), since the error code is now never used.
>
> Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
> Cc: Philipp Zabel <philipp.zabel@gmail.com>
> ---
> drivers/power/pda_power.c | 3 ---
> 1 files changed, 0 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
> index d3be834d..7df7c5f 100644
> --- a/drivers/power/pda_power.c
> +++ b/drivers/power/pda_power.c
> @@ -284,9 +284,7 @@ static int pda_power_probe(struct platform_device *pdev)
> ac_draw = regulator_get(dev, "ac_draw");
> if (IS_ERR(ac_draw)) {
> dev_dbg(dev, "couldn't get ac_draw regulator\n");
> - ret = PTR_ERR(ac_draw);
> ac_draw = NULL;
> - goto ac_draw_failed;
For some reason you have a bit different code, so your patch is not based
on the battery tree. (In my tree ret and ac_draw assignments are swapped.)
Maybe that's because I had to manually redo your first patch...
Anyway, I repeated your patch by hand again and thus applied it.
Thank you!
> }
>
> update_status();
> @@ -416,7 +414,6 @@ ac_supply_failed:
> regulator_put(ac_draw);
> ac_draw = NULL;
> }
> -ac_draw_failed:
> if (pdata->exit)
> pdata->exit(dev);
> init_failed:
> --
> 1.7.8.6
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] pda_power: remove ac_draw_failed goto and label
2012-09-21 23:51 ` Anton Vorontsov
@ 2012-09-22 0:59 ` Paul Parsons
0 siblings, 0 replies; 3+ messages in thread
From: Paul Parsons @ 2012-09-22 0:59 UTC (permalink / raw)
To: Anton Vorontsov; +Cc: dwmw2, philipp.zabel, linux-kernel
Hello Anton,
On 22/09/12 00:51, Anton Vorontsov wrote:
> On Fri, Sep 21, 2012 at 01:56:43AM +0100, Paul Parsons wrote:
>> A previous patch added the ac_draw_failed goto and label to
>> pda_power_probe(). The goto would be invoked after a failed call to
>> regulator_get().
>>
>> However the way ac_draw is used - always after a check for NULL -
>> suggests that a failed call to regulator_get() was not fatal.
>>
>> This patch removes the ac_draw_failed goto and label, partly reverting
>> the previous patch.
>>
>> This patch also removes the assignment of an error code to ret after a
>> failed call to regulator_get(), since the error code is now never used.
>>
>> Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
>> Cc: Philipp Zabel <philipp.zabel@gmail.com>
>> ---
>> drivers/power/pda_power.c | 3 ---
>> 1 files changed, 0 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
>> index d3be834d..7df7c5f 100644
>> --- a/drivers/power/pda_power.c
>> +++ b/drivers/power/pda_power.c
>> @@ -284,9 +284,7 @@ static int pda_power_probe(struct platform_device *pdev)
>> ac_draw = regulator_get(dev, "ac_draw");
>> if (IS_ERR(ac_draw)) {
>> dev_dbg(dev, "couldn't get ac_draw regulator\n");
>> - ret = PTR_ERR(ac_draw);
>> ac_draw = NULL;
>> - goto ac_draw_failed;
>
> For some reason you have a bit different code, so your patch is not based
> on the battery tree. (In my tree ret and ac_draw assignments are swapped.)
> Maybe that's because I had to manually redo your first patch...
>
> Anyway, I repeated your patch by hand again and thus applied it.
Yes, in my first patch I had swapped the ret and ac_draw assignments
when I moved the regulator_get() call to before the update_charger()
call. This was because the original order of the assignments:
ac_draw = NULL;
ret = PTR_ERR(ac_draw);
is obviously incorrect; the ac_draw assignment overwrites the error
code that should be returned by PTR_ERR().
Anyway, thank you for sorting this out!
Regards,
Paul
> Thank you!
>
>> }
>>
>> update_status();
>> @@ -416,7 +414,6 @@ ac_supply_failed:
>> regulator_put(ac_draw);
>> ac_draw = NULL;
>> }
>> -ac_draw_failed:
>> if (pdata->exit)
>> pdata->exit(dev);
>> init_failed:
>> --
>> 1.7.8.6
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-09-21 0:56 [PATCH] pda_power: remove ac_draw_failed goto and label Paul Parsons
2012-09-21 23:51 ` Anton Vorontsov
2012-09-22 0:59 ` Paul Parsons
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