From: Ivan Orlov ivan.orlov0322@gmail.com
[ Upstream commit 4913cfcf014c95f0437db2df1734472fd3e15098 ]
The debugfs_create_dir function returns ERR_PTR in case of error, and the only correct way to check if an error occurred is 'IS_ERR' inline function. This patch will replace the null-comparison with IS_ERR.
Signed-off-by: Ivan Orlov ivan.orlov0322@gmail.com Link: https://lore.kernel.org/r/20230512130533.98709-1-ivan.orlov0322@gmail.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/block/nbd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 394355f12d4e0..e563aa407e888 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1605,7 +1605,7 @@ 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; @@ -1631,7 +1631,7 @@ 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;