From: Yunjian Wang Date: Fri, 17 Apr 2020 12:03:57 +0000 (+0800) Subject: net/tap: fix queues fd check before close X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=13b698d11feca4ab12237303d553dc4e89d8a8d6;p=dpdk.git net/tap: fix queues fd check before close The fd is possibly a negative value while it is passed as an argument to function "close". Fix the check to the fd. Fixes: ed8132e7c912 ("net/tap: move fds of queues to be in process private") Cc: stable@dpdk.org Signed-off-by: Yunjian Wang Reviewed-by: Ferruh Yigit --- diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c index e644f8875b..7081ae23e9 100644 --- a/drivers/net/tap/rte_eth_tap.c +++ b/drivers/net/tap/rte_eth_tap.c @@ -1089,7 +1089,7 @@ tap_rx_queue_release(void *queue) if (!rxq) return; process_private = rte_eth_devices[rxq->in_port].process_private; - if (process_private->rxq_fds[rxq->queue_id] > 0) { + if (process_private->rxq_fds[rxq->queue_id] != -1) { close(process_private->rxq_fds[rxq->queue_id]); process_private->rxq_fds[rxq->queue_id] = -1; tap_rxq_pool_free(rxq->pool); @@ -1109,7 +1109,7 @@ tap_tx_queue_release(void *queue) return; process_private = rte_eth_devices[txq->out_port].process_private; - if (process_private->txq_fds[txq->queue_id] > 0) { + if (process_private->txq_fds[txq->queue_id] != -1) { close(process_private->txq_fds[txq->queue_id]); process_private->txq_fds[txq->queue_id] = -1; } diff --git a/drivers/net/tap/tap_intr.c b/drivers/net/tap/tap_intr.c index 58f36d3ccb..5cf4f173a0 100644 --- a/drivers/net/tap/tap_intr.c +++ b/drivers/net/tap/tap_intr.c @@ -71,7 +71,7 @@ tap_rx_intr_vec_install(struct rte_eth_dev *dev) struct rx_queue *rxq = pmd->dev->data->rx_queues[i]; /* Skip queues that cannot request interrupts. */ - if (!rxq || process_private->rxq_fds[i] <= 0) { + if (!rxq || process_private->rxq_fds[i] == -1) { /* Use invalid intr_vec[] index to disable entry. */ intr_handle->intr_vec[i] = RTE_INTR_VEC_RXTX_OFFSET +