[PATCH] ntb: hw: intel: remove return value check of `ndev_init_debugfs`

From: Yinhao Hu <dddddd@hust.edu.cn>
To: Dave Jiang <dave.jiang@intel.com>, Jon Mason <jdmason@kudzu.us>,
	Allen Hubbe <allenbh@gmail.com>
Cc: hust-os-kernel-patches@googlegroups.com,
	Yinhao Hu <dddddd@hust.edu.cn>, Dongliang Mu <dzm91@hust.edu.cn>,
	ntb@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH] ntb: hw: intel: remove return value check of `ndev_init_debugfs`
Date: Sat, 22 Apr 2023 23:56:34 +0800	[thread overview]
Message-ID: <20230422155634.483023-1-dddddd@hust.edu.cn> (raw)

Smatch complains that:
ndev_init_debugfs() warn: 'ndev->debugfs_dir' is an error pointer or valid

Debugfs checks are generally not supposed to be checked for errors
and it is not necessary here.

Just delete the dead code.

Signed-off-by: Yinhao Hu <dddddd@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
---
The issue is found by static analysis and remains untested.
---
 drivers/ntb/hw/intel/ntb_hw_gen1.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c
index 9ab836d0d4f1..9b0b2c43f1bb 100644
--- a/drivers/ntb/hw/intel/ntb_hw_gen1.c
+++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c
@@ -778,13 +778,10 @@ 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)
-			ndev->debugfs_info = NULL;
-		else
-			ndev->debugfs_info =
-				debugfs_create_file("info", S_IRUSR,
-						    ndev->debugfs_dir, ndev,
-						    &intel_ntb_debugfs_info);
+		ndev->debugfs_info =
+			debugfs_create_file("info", S_IRUSR,
+					    ndev->debugfs_dir, ndev,
+					    &intel_ntb_debugfs_info);
 	}
 }
 
-- 
2.34.1

