[PATCH v1] drivers: block: Updates return value check

[Atul Kumar Pant <atulpant.linux@gmail.com>]

Updating the check of return value from debugfs_create_dir
to use IS_ERR.

Signed-off-by: Atul Kumar Pant <atulpant.linux@gmail.com>
---
 drivers/block/nbd.c     | 4 ++--
 drivers/block/pktcdvd.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 9c35c958f2c8..65ecde3e2a5b 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1666,7 +1666,7 @@ static int nbd_dev_dbg_init(struct nbd_device *nbd)
 		return -EIO;
 
 	dir = debugfs_create_dir(nbd_name(nbd), nbd_dbg_dir);
-	if (!dir) {
+	if (IS_ERR(dir)) {
 		dev_err(nbd_to_dev(nbd), "Failed to create debugfs dir for '%s'\n",
 			nbd_name(nbd));
 		return -EIO;
@@ -1692,7 +1692,7 @@ static int nbd_dbg_init(void)
 	struct dentry *dbg_dir;
 
 	dbg_dir = debugfs_create_dir("nbd", NULL);
-	if (!dbg_dir)
+	if (IS_ERR(dbg_dir))
 		return -EIO;
 
 	nbd_dbg_dir = dbg_dir;
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index d5d7884cedd4..69e5a100b3cf 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -451,7 +451,7 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
 	if (!pkt_debugfs_root)
 		return;
 	pd->dfs_d_root = debugfs_create_dir(pd->name, pkt_debugfs_root);
-	if (!pd->dfs_d_root)
+	if (IS_ERR(pd->dfs_d_root))
 		return;
 
 	pd->dfs_f_info = debugfs_create_file("info", 0444,
-- 
2.25.1