From c2d6bd61ee77b59566116afe6e20513d19945ed4 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 12 Aug 2014 11:55:06 +0200
Subject: [PATCH] networkd: update manager_save() to use fflush_and_check() to
 simplify things a bit

---
 src/network/networkd-link.c    | 21 ++++++++++++---------
 src/network/networkd-manager.c | 19 +++++++++++--------
 2 files changed, 23 insertions(+), 17 deletions(-)

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index a95efe365..62533c166 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -2332,7 +2332,7 @@ int link_save(Link *link) {
 
         r = fopen_temporary(link->state_file, &f, &temp_path);
         if (r < 0)
-                goto finish;
+                return r;
 
         fchmod(fileno(f), 0644);
 
@@ -2393,7 +2393,7 @@ int link_save(Link *link) {
 
                 r = dhcp_lease_save(link->dhcp_lease, link->lease_file);
                 if (r < 0)
-                        goto finish;
+                        goto fail;
 
                 fprintf(f,
                         "DHCP_LEASE=%s\n",
@@ -2401,18 +2401,21 @@ int link_save(Link *link) {
         } else
                 unlink(link->lease_file);
 
-        fflush(f);
+        r = fflush_and_check(f);
+        if (r < 0)
+                goto fail;
 
-        if (ferror(f) || rename(temp_path, link->state_file) < 0) {
+        if (rename(temp_path, link->state_file) < 0) {
                 r = -errno;
-                unlink(link->state_file);
-                unlink(temp_path);
+                goto fail;
         }
 
-finish:
-        if (r < 0)
-                log_error_link(link, "Failed to save link data to %s: %s", link->state_file, strerror(-r));
+        return 0;
 
+fail:
+        log_error_link(link, "Failed to save link data to %s: %s", link->state_file, strerror(-r));
+        unlink(link->state_file);
+        unlink(temp_path);
         return r;
 }
 
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 223cb2a75..8a0ed5ea2 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -440,7 +440,7 @@ int manager_save(Manager *m) {
 
         r = fopen_temporary(m->state_file, &f, &temp_path);
         if (r < 0)
-                goto finish;
+                return r;
 
         fchmod(fileno(f), 0644);
 
@@ -448,18 +448,21 @@ int manager_save(Manager *m) {
                 "# This is private data. Do not parse.\n"
                 "OPER_STATE=%s\n", operstate_str);
 
-        fflush(f);
+        r = fflush_and_check(f);
+        if (r < 0)
+                goto fail;
 
-        if (ferror(f) || rename(temp_path, m->state_file) < 0) {
+        if (rename(temp_path, m->state_file) < 0) {
                 r = -errno;
-                unlink(m->state_file);
-                unlink(temp_path);
+                goto fail;
         }
 
-finish:
-        if (r < 0)
-                log_error("Failed to save network state to %s: %s", m->state_file, strerror(-r));
+        return 0;
 
+fail:
+        log_error("Failed to save network state to %s: %s", m->state_file, strerror(-r));
+        unlink(m->state_file);
+        unlink(temp_path);
         return r;
 }
 
-- 
2.30.2