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wifi: mac80211: lock wiphy for aggregation debugfs 

To change aggregation status may call into the driver,
lock the wiphy for this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-08-28 13:59:31 +02:00
parent 0ab6cba069
commit e911a8192e
1 changed files with 3 additions and 1 deletions
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4
net/mac80211/debugfs_sta.c
View File

@ -5,7 +5,7 @@
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright(c) 2016 Intel Deutschland GmbH
* Copyright (C) 2018 - 2022 Intel Corporation
* Copyright (C) 2018 - 2023 Intel Corporation
*/
#include <linux/debugfs.h>
@ -420,6 +420,7 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu
if (ret || tid >= IEEE80211_NUM_TIDS)
return -EINVAL;
wiphy_lock(sta->local->hw.wiphy);
if (tx) {
if (start)
ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
@ -431,6 +432,7 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu
3, true);
ret = 0;
}
wiphy_unlock(sta->local->hw.wiphy);
return ret ?: count;
}