On Mon, Apr 15, 2019 at 05:04:17PM +0100, Suzuki K Poulose wrote:
> As we prepare to expose the links between the devices in
> sysfs, pass the coresight_device instance to the
> coresight_release_platform_data in order to free up the connections
> when the device is removed.
> 
> No functional changes as such in this patch.
> 
> Cc: Mathieu Poirier <[email protected]>
> Signed-off-by: Suzuki K Poulose <[email protected]>
> ---
>  drivers/hwtracing/coresight/coresight-platform.c | 2 +-
>  drivers/hwtracing/coresight/coresight-priv.h     | 3 ++-
>  drivers/hwtracing/coresight/coresight.c          | 7 ++++---
>  3 files changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/hwtracing/coresight/coresight-platform.c 
> b/drivers/hwtracing/coresight/coresight-platform.c
> index 224f698..6559c49 100644
> --- a/drivers/hwtracing/coresight/coresight-platform.c
> +++ b/drivers/hwtracing/coresight/coresight-platform.c
> @@ -734,7 +734,7 @@ coresight_get_platform_data(struct device *dev)
>               return pdata;
>  
>       /* Cleanup the connection information */
> -     coresight_release_platform_data(pdata);
> +     coresight_release_platform_data(NULL, pdata);
>       return ret;
>  }
>  EXPORT_SYMBOL_GPL(coresight_get_platform_data);
> diff --git a/drivers/hwtracing/coresight/coresight-priv.h 
> b/drivers/hwtracing/coresight/coresight-priv.h
> index 61d7f9f..bf28ca9 100644
> --- a/drivers/hwtracing/coresight/coresight-priv.h
> +++ b/drivers/hwtracing/coresight/coresight-priv.h
> @@ -200,6 +200,7 @@ static inline void *coresight_get_uci_data(const struct 
> amba_id *id)
>       return 0;
>  }
>  
> -void coresight_release_platform_data(struct coresight_platform_data *pdata);
> +void coresight_release_platform_data(struct coresight_device *csdev,
> +                                  struct coresight_platform_data *pdata);
>  
>  #endif
> diff --git a/drivers/hwtracing/coresight/coresight.c 
> b/drivers/hwtracing/coresight/coresight.c
> index e3b9321..010bc86 100644
> --- a/drivers/hwtracing/coresight/coresight.c
> +++ b/drivers/hwtracing/coresight/coresight.c
> @@ -1173,7 +1173,8 @@ postcore_initcall(coresight_init);
>   * coresight_release_platform_data: Release references to the devices 
> connected
>   * to the output port of this device.
>   */
> -void coresight_release_platform_data(struct coresight_platform_data *pdata)
> +void coresight_release_platform_data(struct coresight_device *csdev,
> +                                  struct coresight_platform_data *pdata)
>  {
>       int i;
>  
> @@ -1275,7 +1276,7 @@ struct coresight_device *coresight_register(struct 
> coresight_desc *desc)
>       kfree(csdev);
>  err_out:
>       /* Cleanup the connection information */
> -     coresight_release_platform_data(desc->pdata);
> +     coresight_release_platform_data(NULL, desc->pdata);
>       return ERR_PTR(ret);
>  }
>  EXPORT_SYMBOL_GPL(coresight_register);
> @@ -1285,7 +1286,7 @@ void coresight_unregister(struct coresight_device 
> *csdev)
>       etm_perf_del_symlink_sink(csdev);
>       /* Remove references of that device in the topology */
>       coresight_remove_conns(csdev);
> -     coresight_release_platform_data(csdev->pdata);
> +     coresight_release_platform_data(csdev, csdev->pdata);
>       device_unregister(&csdev->dev);
>  }
>  EXPORT_SYMBOL_GPL(coresight_unregister);

Reviewed-by: Mathieu Poirier <[email protected]>

> -- 
> 2.7.4
> 

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