Module: xenomai-forge
Branch: master
Commit: 83b187f61d730d7b1edb1e83199854d04a1bd219
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=83b187f61d730d7b1edb1e83199854d04a1bd219
Author: Philippe Gerum <r...@xenomai.org>
Date: Fri Sep 6 19:15:14 2013 +0200
cobalt/posix/thread: fix potential race in exit handler
---
kernel/cobalt/posix/thread.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/kernel/cobalt/posix/thread.c b/kernel/cobalt/posix/thread.c
index 83f94d0..68d15f1 100644
--- a/kernel/cobalt/posix/thread.c
+++ b/kernel/cobalt/posix/thread.c
@@ -213,6 +213,7 @@ EXPORT_SYMBOL_GPL(cobalt_thread_find_local);
struct xnpersonality *cobalt_thread_exit(struct xnthread *curr)
{
struct cobalt_thread *thread;
+ spl_t s;
thread = container_of(curr, struct cobalt_thread, threadbase);
/*
@@ -220,11 +221,13 @@ struct xnpersonality *cobalt_thread_exit(struct xnthread
*curr)
* userland.
*/
thread_unhash(&thread->hkey);
+ xnlock_get_irqsave(&nklock, s);
cobalt_mark_deleted(thread);
+ list_del(&thread->link);
+ xnlock_put_irqrestore(&nklock, s);
cobalt_signal_flush(thread);
xnsynch_destroy(&thread->monitor_synch);
xnsynch_destroy(&thread->sigwait);
- list_del(&thread->link);
/* We don't stack over any personality, no chaining. */
return NULL;
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