From: Ouyang Changchun Date: Wed, 29 Oct 2014 06:39:38 +0000 (+0800) Subject: vhost: fix build without unused result X-Git-Tag: spdx-start~10227 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=aec8283d47;p=dpdk.git vhost: fix build without unused result 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 Tested-by: Jingguo Fu --- diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c index 27ba175499..8015dd8406 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; }