[PATCH 5/7] staging: rtl8188eu: use safe iterator in xmit_delivery_enabled_frames()

Dan Carpenter
2021-06-07T18:18:52Z

This loop calls list_del_init(&pxmitframe->list) and "pxmitframe" is the
list iterator so it leads to a forever loop. We need to use a _safe()
iterator to fix this.

Fixes: 23017c8842d2 ("staging: rtl8188eu: Use list iterators and helpers")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/staging/rtl8188eu/core/rtw_xmit.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c
index d5489811c5bc..718dd20ff36c 100644
--- a/drivers/staging/rtl8188eu/core/rtw_xmit.c
+++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c
@@ -1912,17 +1912,14 @@ void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *psta)
{
u8 wmmps_ac = 0;
- struct list_head *xmitframe_plist, *xmitframe_phead;
- struct xmit_frame *pxmitframe = NULL;
+ struct list_head *xmitframe_phead;
+ struct xmit_frame *pxmitframe, *n;
struct sta_priv *pstapriv = &padapter->stapriv;

spin_lock_bh(&psta->sleep_q.lock);

xmitframe_phead = get_list_head(&psta->sleep_q);
- list_for_each(xmitframe_plist, xmitframe_phead) {
- pxmitframe = list_entry(xmitframe_plist, struct xmit_frame,
- list);
-
+ list_for_each_entry_safe(pxmitframe, n, xmitframe_phead, list) {
switch (pxmitframe->attrib.priority) {
case 1:
case 2:
--
2.30.2