[patch] mtd: use correct error codes in debugfs_create()

[Dan Carpenter]

The test here is reversed.  It should be that if "dent" is a valid error
code then we use it, otherwise if it is NULL then use -ENODEV.

Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index 63cb1d7..3916782 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;
 
 		ubi_err("cannot create \"ubi\" debugfs directory, error %d\n",
 			err);
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index cb38f3d..f06863a 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -530,7 +530,7 @@ static int nandsim_debugfs_create(struct nandsim *dev)
 
 	dent = debugfs_create_dir("nandsim", NULL);
 	if (IS_ERR_OR_NULL(dent)) {
-		int err = dent ? -ENODEV : PTR_ERR(dent);
+		int err = dent ? PTR_ERR(dent) : -ENODEV;
 
 		NS_ERR("cannot create \"nandsim\" debugfs directory, err %d\n",
 			err);