Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.17 0741/1126] staging: r8188eu: fix endless loop in recv_func | Date | Tue, 5 Apr 2022 09:24:48 +0200 |
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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 51a13262a226..d120d61454a3 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); } -- 2.34.1
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