Commit ff46e2e7 authored by Miaoqian Lin's avatar Miaoqian Lin Committed by Miri Korenblit
Browse files

wifi: iwlwifi: Fix dentry reference leak in iwl_mld_add_link_debugfs 



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

Fixes: d1e879ec ("wifi: iwlwifi: add iwlmld sub-driver")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
Link: https://patch.msgid.link/20250902040955.2362472-1-linmq006@gmail.com


Signed-off-by: default avatarMiri Korenblit <miriam.rachel.korenblit@intel.com>
parent 0d2ab5f9

drivers/net/wireless/intel/iwlwifi/mld/debugfs.c

+5 −1
Original line number Diff line number Diff line
@@ -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,