diff options
| -rw-r--r-- | drivers/net/can/mscan/mscan.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c index 76e413e7fdb1..20d1991b9094 100644 --- a/drivers/net/can/mscan/mscan.c +++ b/drivers/net/can/mscan/mscan.c @@ -379,8 +379,10 @@ static int mscan_rx_poll(struct napi_struct *napi, int quota) struct can_frame *frame; u8 canrflg; - while (npackets < quota && ((canrflg = in_8(®s->canrflg)) & - (MSCAN_RXF | MSCAN_ERR_IF))) { + while (npackets < quota) { + canrflg = in_8(®s->canrflg); + if (!(canrflg & (MSCAN_RXF | MSCAN_ERR_IF))) + break; skb = alloc_can_skb(dev, &frame); if (!skb) { |