debugfs directory entries for devices are not removed on bad path.
If so, subsequent attempts to start blktrace on the respective
devices will not succeed due to existing directories.
Signed-off-by: Stefan Raspl <stefan.raspl@xxxxxxxxxxxxxxxxxx>
---
kernel/trace/blktrace.c | 1 +
1 file changed, 1 insertion(+)
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -262,6 +262,7 @@ static void blk_trace_free(struct blk_tr
{
debugfs_remove(bt->msg_file);
debugfs_remove(bt->dropped_file);
+ debugfs_remove(bt->dir);
relay_close(bt->rchan);
free_percpu(bt->sequence);
free_percpu(bt->msg_data);
--
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