File fix-swap-priority.patch of Package systemd

Index: systemd-37/src/mount.c
===================================================================
--- systemd-37.orig/src/mount.c
+++ systemd-37/src/mount.c
@@ -1485,7 +1485,7 @@ fail:
         return r;
 }
 
-static int mount_find_pri(char *options) {
+static int mount_find_pri(char *options, int *ret) {
         char *end, *pri;
         unsigned long r;
 
@@ -1503,7 +1503,8 @@ static int mount_find_pri(char *options)
         if (end == pri || (*end != ',' && *end != 0))
                 return -EINVAL;
 
-        return (int) r;
+        *ret = (int) r;
+        return 1;
 }
 
 static int mount_load_etc_fstab(Manager *m) {
@@ -1539,9 +1540,10 @@ static int mount_load_etc_fstab(Manager
                         path_kill_slashes(where);
 
                 if (streq(me->mnt_type, "swap")) {
-                        int pri;
+                        int r, pri = -1;
 
-                        if ((pri = mount_find_pri(me->mnt_opts)) < 0)
+                        r = mount_find_pri(me->mnt_opts,&pri);
+                        if (r < 0)
                                 k = pri;
                         else
                                 k = swap_add_one(m,