[PATCH 1/7] blktrace: fix possible memory leak

[Li Zefan]

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

Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
 kernel/trace/blktrace.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index b171778..fb3bc53 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -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);
-- 
1.5.4.rc3

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