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wifi: iwlwifi: Fix dentry reference leak in iwl_mld_add_link_debugfs

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The debugfs_lookup() function increases the dentry reference count.
Add missing dput() call to release the reference when the "iwlmld"
directory already exists.

Fixes: d1e879ec60 ("wifi: iwlwifi: add iwlmld sub-driver")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://patch.msgid.link/20250902040955.2362472-1-linmq006@gmail.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
This commit is contained in:
Miaoqian Lin 2025-09-02 12:09:49 +08:00 committed by Miri Korenblit
parent 0d2ab5f922
commit ff46e2e703
1 changed files with 5 additions and 1 deletions
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6
drivers/net/wireless/intel/iwlwifi/mld/debugfs.c
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@ -1001,8 +1001,12 @@ void iwl_mld_add_link_debugfs(struct ieee80211_hw *hw,
* If not, this is a per-link dir of a MLO vif, add in it the iwlmld
* dir.
*/
if (!mld_link_dir)
if (!mld_link_dir) {
mld_link_dir = debugfs_create_dir("iwlmld", dir);
} else {
/* Release the reference from debugfs_lookup */
dput(mld_link_dir);
}
}
static ssize_t _iwl_dbgfs_fixed_rate_write(struct iwl_mld *mld, char *buf,