From: Martin Kaiser Date: Sat, 26 Feb 2022 18:14:53 +0000 (+0100) Subject: staging: r8188eu: fix endless loop in recv_func X-Git-Tag: v5.16.19~344 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e9b767c6cd44707cd118cd1ef3a3870bbb19c1d;p=thirdparty%2Fkernel%2Fstable.git staging: r8188eu: fix endless loop in recv_func [ 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 Signed-off-by: Martin Kaiser Link: https://lore.kernel.org/r/20220226181457.1138035-4-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- diff --git a/drivers/staging/r8188eu/core/rtw_recv.c b/drivers/staging/r8188eu/core/rtw_recv.c index 51a13262a226f..d120d61454a35 100644 --- a/drivers/staging/r8188eu/core/rtw_recv.c +++ b/drivers/staging/r8188eu/core/rtw_recv.c @@ -1853,8 +1853,7 @@ 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); }