[dpdk-stable] [dpdk-dev] [PATCH] bus/dpaa: fix fd check before close

[wangyunjian]

From: Yunjian Wang <wangyunjian at 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: b9c94167904f ("bus/dpaa: decouple FQ portal alloc and init")
Cc: stable at dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>
---
 drivers/bus/dpaa/base/qbman/qman_driver.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/dpaa/base/qbman/qman_driver.c b/drivers/bus/dpaa/base/qbman/qman_driver.c
index 1166d68e2..1bff0bc2f 100644
--- a/drivers/bus/dpaa/base/qbman/qman_driver.c
+++ b/drivers/bus/dpaa/base/qbman/qman_driver.c
@@ -142,7 +142,7 @@ struct qman_portal *fsl_qman_fq_portal_create(int *fd)
 	struct qm_portal_config *q_pcfg;
 	struct dpaa_ioctl_irq_map irq_map;
 	struct dpaa_ioctl_portal_map q_map = {0};
-	int q_fd = 0, ret;
+	int q_fd = -1, ret;
 
 	q_pcfg = kzalloc((sizeof(struct qm_portal_config)), 0);
 	if (!q_pcfg) {
@@ -191,7 +191,7 @@ struct qman_portal *fsl_qman_fq_portal_create(int *fd)
 err:
 	if (portal)
 		qman_free_global_portal(portal);
-	if (q_fd)
+	if (q_fd != -1)
 		close(q_fd);
 	process_portal_unmap(&q_map.addr);
 	kfree(q_pcfg);
-- 
2.23.0