nspawn: make coverity happy

Rather than checking the return of asprintf() we are checking if buf gets allocated,
make it clear that it is ok to ignore the return value.

Fixes CID 1299644.

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 646edea..a0eece6 100644 (file)
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -1026,9 +1026,9 @@ static int tmpfs_patch_options(const char *options, char **ret) {
         if (arg_userns && arg_uid_shift != 0) {
 
                 if (options)
-                        asprintf(&buf, "%s,uid=" UID_FMT ",gid=" UID_FMT, options, arg_uid_shift, arg_uid_shift);
+                        (void) asprintf(&buf, "%s,uid=" UID_FMT ",gid=" UID_FMT, options, arg_uid_shift, arg_uid_shift);
                 else
-                        asprintf(&buf, "uid=" UID_FMT ",gid=" UID_FMT, arg_uid_shift, arg_uid_shift);
+                        (void) asprintf(&buf, "uid=" UID_FMT ",gid=" UID_FMT, arg_uid_shift, arg_uid_shift);
                 if (!buf)
                         return -ENOMEM;