[dpdk-dev] [PATCH] eal/linux: fix fd check before close

[Yong Wang]

The "dev->intr_handle.fd" is possibly a negative value while it is
passed as an argument to function "close". Fix the check to the fd.

Signed-off-by: Yong Wang <wang.yong19 at zte.com.cn>
---
 lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
index 3e4ffb5..20a4a66 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
@@ -230,7 +230,7 @@
 		close(dev->intr_handle.uio_cfg_fd);
 		dev->intr_handle.uio_cfg_fd = -1;
 	}
-	if (dev->intr_handle.fd) {
+	if (dev->intr_handle.fd >= 0) {
 		close(dev->intr_handle.fd);
 		dev->intr_handle.fd = -1;
 		dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
-- 
1.8.3.1