From: Mathias Krause <minipli@googlemail.com>
Date: Sun, 19 Jun 2016 12:31:30 +0000 (+0200)
Subject: dma-buf: remove dma_buf directory on bufinfo file creation errors
X-Git-Tag: v4.9.8~1605^2~34^2~46
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b7479990435713b00870df3c1d98ff66f6ef1ba2;p=platform%2Fkernel%2Flinux-rpi3.git

dma-buf: remove dma_buf directory on bufinfo file creation errors

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@googlemail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
---

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 7094b19..f03e515 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;
 }