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coresight: adding comments to remove ambiguity

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Add comment to function coresight_enable_path() to make
sure there is no misunderstanding about what the code does.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathieu Poirier 2015-10-07 09:26:40 -06:00 committed by Greg Kroah-Hartman
parent 1d27ff5aba
commit 58b8d51b84
1 changed files with 5 additions and 0 deletions
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5
drivers/hwtracing/coresight/coresight.c
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@ -240,6 +240,11 @@ static int coresight_enable_path(struct list_head *path)
int ret = 0;
struct coresight_device *cd;
/*
* At this point we have a full @path, from source to sink. The
* sink is the first entry and the source the last one. Go through
* all the components and enable them one by one.
*/
list_for_each_entry(cd, path, path_link) {
if (cd == list_first_entry(path, struct coresight_device,
path_link)) {