Hi Fengguang,
On 12 September 2012 10:02, Fengguang Wu <fengguang.wu@xxxxxxxxx> wrote:
> Hi Sachin,
>
> On Wed, Sep 12, 2012 at 09:59:38AM +0530, Sachin Kamat wrote:
>> Hi Fengguang,
>>
>> Thanks for bringing this to my notice. I compile tested this patch
>> using the latest (11 Sep 2012) linux-next tree.
>> Unfortunately I cannot not understand the meaning of these smatch warnings.
>> Could you please simplify them for me?
>
> I think the warnings can be quieted by
>
> - return -ENODEV;
> + return err;
>
The original code was something like this:
err = -ENODEV;
return err;
which i simplified to (as a result of using devm_*)
return -ENODEV;
Hence technically i don't think I changed anything. Do you want me to
revert this change back?
> Thanks,
> Fengguang
>
>> On 12 September 2012 09:50, Fengguang Wu <fengguang.wu@xxxxxxxxx> wrote:
>> > Hi Sachin,
>> >
>> > FYI, there are new smatch warnings show up in
>> >
>> > tree: git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds.git for-next
>> > head: 2829515a5fb5ceccb4021d819c3d7d0ecaab86eb
>> > commit: 2829515a5fb5ceccb4021d819c3d7d0ecaab86eb [18/18] leds-lm3530: Use devm_regulator_get function
>> >
>> > All smatch warnings:
>> >
>> > drivers/leds/leds-lm3530.c:361 lm3530_mode_set() info: why not propagate 'mode' from lm3530_get_mode_from_str() instead of -22?
>> > + drivers/leds/leds-lm3530.c:432 lm3530_probe() info: why not propagate 'err' from lm3530_init_registers() instead of -19?
>> > + drivers/leds/leds-lm3530.c:438 lm3530_probe() info: why not propagate 'err' from led_classdev_register() instead of -19?
>> >
>> > vim +432 drivers/leds/leds-lm3530.c
>> > 422 err = PTR_ERR(drvdata->regulator);
>> > 423 drvdata->regulator = NULL;
>> > 424 return err;
>> > 425 }
>> > 426
>> > 427 if (drvdata->pdata->brt_val) {
>> > 428 err = lm3530_init_registers(drvdata);
>> > 429 if (err < 0) {
>> > 430 dev_err(&client->dev,
>> > 431 "Register Init failed: %d\n", err);
>> > > 432 return -ENODEV;
>> > 433 }
>> > 434 }
>> > 435 err = led_classdev_register(&client->dev, &drvdata->led_dev);
>> > 436 if (err < 0) {
>> > 437 dev_err(&client->dev, "Register led class failed: %d\n", err);
>> > 438 return -ENODEV;
>> > 439 }
>> > 440
>> > 441 err = device_create_file(drvdata->led_dev.dev, &dev_attr_mode);
>> > 442 if (err < 0) {
>> >
>> > ---
>> > 0-DAY kernel build testing backend Open Source Technology Centre
>> > Fengguang Wu <wfg@xxxxxxxxxxxxxxx> Intel Corporation
>>
>>
>>
>> --
>> With warm regards,
>> Sachin
--
With warm regards,
Sachin
--
To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
