forked from luck/tmp_suning_uos_patched
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>
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@ -432,7 +432,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
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if (!blk_tree_root) {
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blk_tree_root = debugfs_create_dir("block", NULL);
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if (!blk_tree_root)
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return -ENOMEM;
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goto err;
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}
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dir = debugfs_create_dir(buts->name, blk_tree_root);
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