linux-kernel - [PATCH] driver core: Add log when devtmpfs create node failed

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Date: Wed, 22 May 2024 11:43:46 +0000
From: Xingui Yang <yangxingui@...wei.com>
To: <gregkh@...uxfoundation.org>, <rafael@...nel.org>
CC: <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linuxarm@...wei.com>, <prime.zeng@...ilicon.com>, <liyihang9@...wei.com>,
	<kangfenglong@...wei.com>
Subject: [PATCH] driver core: Add log when devtmpfs create node failed

Currently, no exception information is output when devtmpfs create node
failed, so add log info for it.

Signed-off-by: Xingui Yang <yangxingui@...wei.com>
---
 drivers/base/core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 5f4e03336e68..32a41e0472b2 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -3691,7 +3691,10 @@ int device_add(struct device *dev)
 		if (error)
 			goto SysEntryError;
 
-		devtmpfs_create_node(dev);
+		error = devtmpfs_create_node(dev);
+		if (error)
+			pr_info("devtmpfs create node for %s failed: %d\n",
+				dev_name(dev), error);
 	}
 
 	/* Notify clients of device addition.  This call must come
-- 
2.17.1