util-lib: get_current_dir_name() can return errors other than ENOMEM

get_current_dir_name() can return a variety of errors, not just ENOMEM,
hence don't blindly turn its errors to ENOMEM, but return correct errors
in path_make_absolute_cwd().

This trickles down into a couple of other functions, some of which
receive unrelated minor fixes too with this commit.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/sysusers/sysusers.c b/src/sysusers/sysusers.c
index ba09727080..e594053ee8 100644
--- a/src/sysusers/sysusers.c
+++ b/src/sysusers/sysusers.c
@@ -1762,7 +1762,7 @@ static int parse_argv(int argc, char *argv[]) {
                 {}
         };
 
-        int c;
+        int c, r;
 
         assert(argc >= 0);
         assert(argv);
@@ -1779,10 +1779,10 @@ static int parse_argv(int argc, char *argv[]) {
                         return version();
 
                 case ARG_ROOT:
-                        free(arg_root);
-                        arg_root = path_make_absolute_cwd(optarg);
-                        if (!arg_root)
-                                return log_oom();
+                        arg_root = mfree(arg_root);
+                        r = path_make_absolute_cwd(optarg, &arg_root);
+                        if (r < 0)
+                                return log_error_errno(r, "Failed to make root path absolute: %m");
 
                         path_kill_slashes(arg_root);
                         break;