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* [PATCH] UBI: fix return error code
@ 2015-11-20 10:14 Sudip Mukherjee
  2015-11-20 10:17 ` Richard Weinberger
  0 siblings, 1 reply; 4+ messages in thread
From: Sudip Mukherjee @ 2015-11-20 10:14 UTC (permalink / raw)
  To: Artem Bityutskiy, Richard Weinberger, David Woodhouse,
	Brian Norris
  Cc: linux-kernel, linux-mtd, Sudip Mukherjee

We are checking dfs_rootdir for error value or NULL. But in the
conditional ternary operator we returned -ENODEV if dfs_rootdir contains
an error value and returned PTR_ERR(dfs_rootdir) if dfs_rootdir is NULL.
So in the case of dfs_rootdir being NULL we actually assigned 0 to err
and returned it to the caller implying a success.
Lets return -ENODEV when dfs_rootdir is NULL else return
PTR_ERR(dfs_rootdir).

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
---
 drivers/mtd/ubi/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index b077e43..c4cb15a 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -236,7 +236,7 @@ int ubi_debugfs_init(void)
 
 	dfs_rootdir = debugfs_create_dir("ubi", NULL);
 	if (IS_ERR_OR_NULL(dfs_rootdir)) {
-		int err = dfs_rootdir ? -ENODEV : PTR_ERR(dfs_rootdir);
+		int err = dfs_rootdir ? PTR_ERR(dfs_rootdir) : -ENODEV;
 
 		pr_err("UBI error: cannot create \"ubi\" debugfs directory, error %d\n",
 		       err);
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2015-12-09 12:08 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2015-11-20 10:14 [PATCH] UBI: fix return error code Sudip Mukherjee
2015-11-20 10:17 ` Richard Weinberger
2015-12-09 12:02   ` Sudip Mukherjee
2015-12-09 12:07     ` Richard Weinberger

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