It fixes this compilation complain: "error: ignoring return value of
'realpath',
declared with attribute warn_unused_result [-Werror=unused-result]"
Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com>
---
lib/librte_vhost/virtio-net.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c
index 27ba175..8015dd8 100644
--- a/lib/librte_vhost/virtio-net.c
+++ b/lib/librte_vhost/virtio-net.c
@@ -133,6 +133,7 @@ host_memory_map(struct virtio_net *dev, struct
virtio_memory *mem,
char mapfile[PATH_MAX];
char procdir[PATH_MAX];
char resolved_path[PATH_MAX];
+ char *path = NULL;
FILE *fmap;
void *map;
uint8_t found = 0;
@@ -235,9 +236,11 @@ host_memory_map(struct virtio_net *dev, struct
virtio_memory *mem,
while (NULL != (dptr = readdir(dp))) {
snprintf(memfile, PATH_MAX, "/proc/%u/fd/%s",
pid, dptr->d_name);
- realpath(memfile, resolved_path);
- if (resolved_path == NULL) {
- RTE_LOG(ERR, VHOST_CONFIG, "(%"PRIu64") Failed to
resolve fd directory\n", dev->device_fh);
+ path = realpath(memfile, resolved_path);
+ if (path == NULL) {
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "(%"PRIu64") Failed to resolve fd directory\n",
+ dev->device_fh);
closedir(dp);
return -1;
}
--
1.8.4.2
