From: Jinjie Ruan <ruanjinjie@huawei.com>
To: <ntb@lists.linux.dev>, Dave Jiang <dave.jiang@intel.com>,
Jon Mason <jdmason@kudzu.us>, Allen Hubbe <allenbh@gmail.com>
Cc: <ruanjinjie@huawei.com>
Subject: [PATCH] ntb: intel: Fix the NULL vs IS_ERR() bug for debugfs_create_dir()
Date: Thu, 31 Aug 2023 20:39:27 +0800 [thread overview]
Message-ID: <20230831123927.3137364-1-ruanjinjie@huawei.com> (raw)
The debugfs_create_dir() function returns error pointers.
It never returns NULL. So use IS_ERR() to check it.
Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
drivers/ntb/hw/intel/ntb_hw_gen1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c
index 9ab836d0d4f1..079b8cd79785 100644
--- a/drivers/ntb/hw/intel/ntb_hw_gen1.c
+++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c
@@ -778,7 +778,7 @@ static void ndev_init_debugfs(struct intel_ntb_dev *ndev)
ndev->debugfs_dir =
debugfs_create_dir(pci_name(ndev->ntb.pdev),
debugfs_dir);
- if (!ndev->debugfs_dir)
+ if (IS_ERR(ndev->debugfs_dir))
ndev->debugfs_info = NULL;
else
ndev->debugfs_info =
--
2.34.1
next reply other threads:[~2023-08-31 12:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-31 12:39 Jinjie Ruan [this message]
2023-08-31 15:00 ` [PATCH] ntb: intel: Fix the NULL vs IS_ERR() bug for debugfs_create_dir() Dave Jiang
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