[PATCH 01/11] coresight-etm4x: Adding CoreSight ETM4x driver

[Mathieu Poirier]

On 24 April 2015 at 09:05, Ivan T. Ivanov <iivanov at mm-sol.com> wrote:
>
> On Wed, 2015-04-22 at 16:40 -0600, Mathieu Poirier wrote:
>> From: Pratik Patel <pratikp at codeaurora.org>
>>
>> This driver manages the CoreSight ETMv4 (Embedded Trace Macrocell) IP block
>> to support HW assisted tracing on ARMv7 and ARMv8 architectures.
>>
>> Signed-off-by: Pratik Patel <pratikp at codeaurora.org>
>> Signed-off-by: Kaixu Xia <xiakaixu at huawei.com>
>> Signed-off-by: Mathieu Poirier poirier at linaro.org>
>
> <snip>
>
>>
>
>> +       pm_runtime_put(&adev->dev);
>> +
>> +       desc->type = CORESIGHT_DEV_TYPE_SOURCE;
>> +       desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
>> +       desc->ops = &etm4_cs_ops;
>> +       desc->pdata = pdata;
>> +       desc->dev = dev;
>> +       desc->groups = coresight_etmv4_groups;
>> +       drvdata->csdev = coresight_register(desc);
>> +       if (IS_ERR(drvdata->csdev)) {
>> +               ret = PTR_ERR(drvdata->csdev);
>> +               goto err_arch_supported;
>
> double runtime put.

Good catch - thanks.

>
>> +       }
>> +
>> +       dev_info(dev, "%s initialized\n", (char *)id->data);
>> +
>> +       if (boot_enable) {
>> +               coresight_enable(drvdata->csdev);
>> +               drvdata->boot_enable = true;
>> +       }
>> +
>> +       return 0;
>> +
>> +err_arch_supported:
>> +       pm_runtime_put(&adev->dev);
>> +       if (--etm4_count == 0)
>> +               unregister_hotcpu_notifier(&etm4_cpu_notifier);
>> +       return ret;
>> +}
>
> Regards,
> Ivan