From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 17 Sep 2020 15:24:33 +0000 (+0200)
Subject: dissect: is_loop_device() returns negative on error, don't mistake that is true
X-Git-Tag: v247-rc1~211^2~2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3afda7c7976c25db786948a961873fa5c2c8e0e9;p=thirdparty%2Fsystemd.git

dissect: is_loop_device() returns negative on error, don't mistake that is true
---

diff --git a/src/shared/dissect-image.c b/src/shared/dissect-image.c
index e7e05a5de6f..2c339e38b85 100644
--- a/src/shared/dissect-image.c
+++ b/src/shared/dissect-image.c
@@ -1033,7 +1033,7 @@ static int mount_partition(
         /* If requested, turn on discard support. */
         if (fstype_can_discard(fstype) &&
             ((flags & DISSECT_IMAGE_DISCARD) ||
-             ((flags & DISSECT_IMAGE_DISCARD_ON_LOOP) && is_loop_device(m->node)))) {
+             ((flags & DISSECT_IMAGE_DISCARD_ON_LOOP) && is_loop_device(m->node) > 0))) {
                 options = strdup("discard");
                 if (!options)
                         return -ENOMEM;