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wifi: mwifiex: debugfs: Drop unnecessary error check for debugfs_create_dir()

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debugfs_create_dir() returns ERR_PTR and never return NULL.

As Russell suggested, this patch removes the error checking for
debugfs_create_dir(). This is because the DebugFS kernel API is developed
in a way that the caller can safely ignore the errors that occur during
the creation of DebugFS nodes. The debugfs APIs have a IS_ERR() judge in
start_creating() which can handle it gracefully. So these checks are
unnecessary.

Fixes: 5e6e3a92b9 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Russell King (Oracle) <linux@armlinux.org.uk>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20230903030216.1509013-3-ruanjinjie@huawei.com
This commit is contained in:
Jinjie Ruan
2023-09-03 11:02:15 +08:00
committed by Kalle Valo
parent 899c0e8a22
commit 50180c7f8e
1 changed files with 0 additions and 3 deletions
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drivers/net/wireless/marvell/mwifiex/debugfs.c
-3
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@@ -970,9 +970,6 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name,
mwifiex_dfs_dir);
if (!priv->dfs_dev_dir)
return;
MWIFIEX_DFS_ADD_FILE(info);
MWIFIEX_DFS_ADD_FILE(debug);
MWIFIEX_DFS_ADD_FILE(getlog);