Fix up some warnings

Signed-off-by: Ikey Doherty <michael.i.doherty@intel.com>

src/fuse.c

@@ -576,7 +576,7 @@ int save_dir;
 
 static void *xmp_init(__nc_unused__ struct fuse_conn_info *conn)
 {
-        fchdir(save_dir);
+        __nc_unused__ int r = fchdir(save_dir);
         close(save_dir);
 
         return NULL;
@@ -633,7 +633,8 @@ int main(__nc_unused__ int argc, __nc_unused__ char *argv[])
         sleep(1);
 
         if (access("/sys/module/fuse/", F_OK)) {
-                system("modprobe fuse");
+                /* Failure would happen later in fuse_main, reduce double checks. */
+                __nc_unused__ int ret = system("modprobe fuse");
         }
         signal(SIGPIPE, SIG_IGN);
 

src/prepare.c

@@ -202,7 +202,9 @@ static void recurse_dir(char *base1, char *base2, char *path)
 
                 newpath = NULL;
                 fullpath2 = NULL;
-                asprintf(&fullpath2, "%s/%s", fullpath1, entry->d_name);
+                if (asprintf(&fullpath2, "%s/%s", fullpath1, entry->d_name) < 0) {
+                        return;
+                }
                 if (asprintf(&newpath, "%s/%s", path, entry->d_name) >= 0) {
                         struct stat sb;
                         stat(fullpath2, &sb);