From: Yunjian Wang <wangyunj...@huawei.com>

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: sta...@dpdk.org

Signed-off-by: Yunjian Wang <wangyunj...@huawei.com>
---
 drivers/net/tap/rte_eth_tap.c | 4 ++--
 drivers/net/tap/tap_intr.c    | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index 05470a211..d5949d7d2 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -1054,7 +1054,7 @@ 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;
                rte_pktmbuf_free(rxq->pool);
@@ -1074,7 +1074,7 @@ 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 7af0010e3..2790d97ce 100644
--- a/drivers/net/tap/tap_intr.c
+++ b/drivers/net/tap/tap_intr.c
@@ -72,7 +72,7 @@ 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 +
-- 
2.19.1


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