[PATCH 2/3] staging: r8188eu: fix null check in _rtw_enqueue_recvframe

Vihas Makwana
2022-04-24T16:31:59Z

There's a NULL check on padapter in rtw_recv.c:189 which makes no sense as
rtw_recv.c:184 dereferences it unconditionally and it would have already
crashed at this point.
Fix this by moving the dereference line inside the check.

Signed-off-by: Vihas Makwana <makvihas@gmail.com>
---
drivers/staging/r8188eu/core/rtw_recv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/r8188eu/core/rtw_recv.c b/drivers/staging/r8188eu/core/rtw_recv.c
index 4cf9b4b8f..7d306a3c6 100644
--- a/drivers/staging/r8188eu/core/rtw_recv.c
+++ b/drivers/staging/r8188eu/core/rtw_recv.c
@@ -181,12 +181,13 @@ int rtw_free_recvframe(struct recv_frame *precvframe, struct __queue *pfree_recv
int _rtw_enqueue_recvframe(struct recv_frame *precvframe, struct __queue *queue)
{
struct adapter *padapter = precvframe->adapter;
- struct recv_priv *precvpriv = &padapter->recvpriv;
+ struct recv_priv *precvpriv;

list_del_init(&precvframe->list);
list_add_tail(&precvframe->list, get_list_head(queue));

if (padapter) {
+ precvpriv = &padapter->recvpriv;
if (queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt++;
}
--
2.30.2