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Subject[PATCH v2 34/36] [RFC] coresight: Pass coresight_device for coresight_release_platform_data
Date
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 <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
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);
--
2.7.4
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