[PATCH 2/4] livepatch: use list_is_first()
From: Geliang Tang <hidden>
Date: 2015-12-10 14:19:29
Also in:
lkml, netfilter-devel
Subsystem:
live patching, the rest · Maintainers:
Josh Poimboeuf, Jiri Kosina, Miroslav Benes, Petr Mladek, Linus Torvalds
For better readability, use list_is_first() instead of open-coded. Signed-off-by: Geliang Tang <redacted> --- kernel/livepatch/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index bc2c85c..be64106 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c@@ -479,7 +479,7 @@ static int __klp_enable_patch(struct klp_patch *patch) return -EINVAL; /* enforce stacking: only the first disabled patch can be enabled */ - if (patch->list.prev != &klp_patches && + if (!list_is_first(&patch->list, &klp_patches) && list_prev_entry(patch, list)->state == KLP_DISABLED) return -EBUSY;
--
2.5.0