[dpdk-dev] [PATCH v3 1/2] eal/bsd: fix possible IOPL fd leak

[Ilya Maximets]

If rte_eal_iopl_init() will be called more than once we'll leak
the file descriptor.

Fixes: b46fe31862ec ("eal/bsd: fix virtio on FreeBSD")
Cc: sta...@dpdk.org

Signed-off-by: Ilya Maximets <i.maxim...@samsung.com>
---
 lib/librte_eal/bsdapp/eal/eal.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index 508cbc46f..b8152a75c 100644
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -556,9 +556,11 @@ int rte_eal_has_hugepages(void)
 int
 rte_eal_iopl_init(void)
 {
-       static int fd;
+       static int fd = -1;
+
+       if (fd < 0)
+               fd = open("/dev/io", O_RDWR);
 
-       fd = open("/dev/io", O_RDWR);
        if (fd < 0)
                return -1;
        /* keep fd open for iopl */
-- 
2.17.1