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blktrace: fix possible memory leak 

When we failed to create "block" debugfs dir, we should do some
cleanups.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <49C2F5B2.8000800@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Li Zefan 2009-03-20 09:47:30 +08:00 committed by Ingo Molnar
parent 22de89b371
commit 1a17662ea0
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/blktrace.c
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@ -432,7 +432,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
if (!blk_tree_root) {
blk_tree_root = debugfs_create_dir("block", NULL);
if (!blk_tree_root)
return -ENOMEM;
goto err;
}
dir = debugfs_create_dir(buts->name, blk_tree_root);