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coresight: coresight_unregister() function cleanup

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In its current form the code never frees csdev->refcnt allocated
in coresight_register().  There is also a problem with csdev->conns
that is freed before device_unregister() rather than in the device
release function.

This patch addresses both issues by moving kfree(csdev->conns) to
coresight_device_release() and freeing csdev->refcnt, also in
the same function.

Reported-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit fae5415879)
This commit is contained in:
Mathieu Poirier
2016-02-02 14:13:57 -07:00
parent 3e42ab0f61
commit 27aa9ceebe
1 changed files with 2 additions and 1 deletions
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3
drivers/hwtracing/coresight/coresight.c
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@@ -481,6 +481,8 @@ static void coresight_device_release(struct device *dev)
{
struct coresight_device *csdev = to_coresight_device(dev);
kfree(csdev->conns);
kfree(csdev->refcnt);
kfree(csdev);
}
@@ -713,7 +715,6 @@ EXPORT_SYMBOL_GPL(coresight_register);
void coresight_unregister(struct coresight_device *csdev)
{
kfree(csdev->conns);
device_unregister(&csdev->dev);
}
EXPORT_SYMBOL_GPL(coresight_unregister);