systemd/0018-device-Avoid-calling-unit_free-NULL-in-device-setup-.patch

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2017-01-31 17:11:17 +00:00
From 9dd94c0ac4b29250e0c06f2bbd8e73cc2072da7d Mon Sep 17 00:00:00 2001
From: Dave Reisner <d@falconindy.com>
Date: Sun, 27 Nov 2016 17:05:39 -0500
Subject: [PATCH] device: Avoid calling unit_free(NULL) in device setup logic
(#4748)
Since a581e45ae8f9bb5c, there's a few function calls to
unit_new_for_name which will unit_free on failure. Prior to this commit,
a failure would result in calling unit_free with a NULL unit, and hit an
assertion failure, seen at least via device_setup_unit:
Assertion 'u' failed at src/core/unit.c:519, function unit_free(). Aborting.
Fixes #4747
https://bugs.archlinux.org/task/51950
(cherry picked from commit d112eae7da77899be245ab52aa1747d4675549f1)
---
src/core/device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/core/device.c b/src/core/device.c
index bd87a447cd..4b9e84aeb6 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -365,7 +365,7 @@ static int device_setup_unit(Manager *m, struct udev_device *dev, const char *pa
fail:
log_unit_warning_errno(u, r, "Failed to set up device unit: %m");
- if (delete)
+ if (delete && u)
unit_free(u);
return r;