6.17-stable review patch. If anyone has any objections, please let me know.
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From: Miaoqian Lin linmq006@gmail.com
commit ff46e2e7034c78489fa7a6bc35f7c9dd8ab82905 upstream.
The debugfs_lookup() function increases the dentry reference count. Add missing dput() call to release the reference when the "iwlmld" directory already exists.
Fixes: d1e879ec600f ("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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/intel/iwlwifi/mld/debugfs.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c index cc052b0aa53f..372204bf8452 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c @@ -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,