vfio: fix FreeBSD clear group stub

On FreeBSD, `rte_vfio_clear_group()` was returning 0 even though this
function is not valid for FreeBSD, and is called out to return error in
doxygen comments.
Fix the return value to match documentation.

Fixes: c564a2a20093 ("vfio: expose clear group function for internal usages")
Cc: stable@dpdk.org
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>

diff --git a/lib/eal/freebsd/eal.c b/lib/eal/freebsd/eal.c
index 2c2baaa..5cea368 100644 (file)
--- a/lib/eal/freebsd/eal.c
+++ b/lib/eal/freebsd/eal.c
@@ -1045,7 +1045,7 @@ int rte_vfio_noiommu_is_enabled(void)
 
 int rte_vfio_clear_group(__rte_unused int vfio_group_fd)
 {
-       return 0;
+       return -1;
 }
 
 int