From: Martin Kaiser martin@kaiser.cx
[ Upstream commit 1327fcf175fa63d3b7a058b8148ed7714acdc035 ]
Fix an endless loop in recv_func. If pending_frame is not NULL, we're stuck in the while loop forever. We have to call rtw_alloc_recvframe each time we loop.
Fixes: 15865124feed ("staging: r8188eu: introduce new core dir for RTL8188eu driver") Reported-by: Pavel Skripkin paskripkin@gmail.com Signed-off-by: Martin Kaiser martin@kaiser.cx Link: https://lore.kernel.org/r/20220226181457.1138035-4-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/staging/r8188eu/core/rtw_recv.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/staging/r8188eu/core/rtw_recv.c b/drivers/staging/r8188eu/core/rtw_recv.c index e082edfbaad8..30ca9f1e0363 100644 --- a/drivers/staging/r8188eu/core/rtw_recv.c +++ b/drivers/staging/r8188eu/core/rtw_recv.c @@ -1942,8 +1942,7 @@ static int recv_func(struct adapter *padapter, struct recv_frame *rframe) struct recv_frame *pending_frame; int cnt = 0;
- pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue); - while (pending_frame) { + while ((pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) { cnt++; recv_func_posthandle(padapter, pending_frame); }