From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 21 Jan 2019 19:13:11 +0000 (+0100)
Subject: cryptsetup: add some commenting about EAGAIN generation
X-Git-Tag: v241-rc2~12^2~4
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b7a0fead10959b03a1fa642a5ae7aca3a6a3dee9;p=thirdparty%2Fsystemd.git

cryptsetup: add some commenting about EAGAIN generation
---

diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
index 7072a893255..bc4ff5f5a71 100644
--- a/src/cryptsetup/cryptsetup.c
+++ b/src/cryptsetup/cryptsetup.c
@@ -450,7 +450,7 @@ static int attach_tcrypt(
                 r = read_one_line_file(key_file, &passphrase);
                 if (r < 0) {
                         log_error_errno(r, "Failed to read password file '%s': %m", key_file);
-                        return -EAGAIN;
+                        return -EAGAIN; /* log with the actual error, but return EAGAIN */
                 }
 
                 params.passphrase = passphrase;