[PATCH 2/3] dma-buf: remove dma_buf directory on bufinfo file creation errors

[Mathias Krause]

Change the error handling in dma_buf_init_debugfs() to remove the
"dma_buf" directory if creating the "bufinfo" file fails. No need to
have an empty debugfs directory around.

Signed-off-by: Mathias Krause <minipli at googlemail.com>
Cc: Sumit Semwal <sumit.semwal at linaro.org>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/dma-buf/dma-buf.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 7094b19bb495..f03e51561199 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -907,8 +907,11 @@ static int dma_buf_init_debugfs(void)

        err = dma_buf_debugfs_create_file("bufinfo", NULL);

-       if (err)
+       if (err) {
                pr_debug("dma_buf: debugfs: failed to create node bufinfo\n");
+               debugfs_remove_recursive(dma_buf_debugfs_dir);
+               dma_buf_debugfs_dir = NULL;
+       }

        return err;
 }
-- 
1.7.10.4