From: Franck Bui <fbui@suse.com>
Date: Tue, 25 Oct 2022 11:54:10 +0000 (+0200)
Subject: random-seed: clarify one comment
X-Git-Tag: v253-rc1~635^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=46e0b5dca7fa5368bccbf30a7d2569d93d994a44;p=thirdparty%2Fsystemd.git

random-seed: clarify one comment
---

diff --git a/src/random-seed/random-seed.c b/src/random-seed/random-seed.c
index 7782509572f..22ddf659ae7 100644
--- a/src/random-seed/random-seed.c
+++ b/src/random-seed/random-seed.c
@@ -249,12 +249,13 @@ static int save_seed_file(
         if (!buf)
                 return log_oom();
 
-        /* Let's make this whole job asynchronous, i.e. let's make ourselves a barrier for proper
-         * initialization of the random pool. */
         k = getrandom(buf, seed_size, GRND_NONBLOCK);
         if (k < 0 && errno == EAGAIN && synchronous) {
+                /* If we're asked to make ourselves a barrier for proper initialization of the random pool
+                 * make this whole job synchronous by asking getrandom() to wait until the requested number
+                 * of random bytes is available. */
                 log_notice("Kernel entropy pool is not initialized yet, waiting until it is.");
-                k = getrandom(buf, seed_size, 0); /* retry synchronously */
+                k = getrandom(buf, seed_size, 0);
         }
         if (k < 0)
                 log_debug_errno(errno, "Failed to read random data with getrandom(), falling back to /dev/urandom: %m");