* [PATCH] lib: notifier: allow unregistering notifier in notifier_call_chain
@ 2024-09-10 8:53 Ahmad Fatoum
2024-09-11 8:38 ` Sascha Hauer
0 siblings, 1 reply; 2+ messages in thread
From: Ahmad Fatoum @ 2024-09-10 8:53 UTC (permalink / raw)
To: barebox; +Cc: Ahmad Fatoum
It's possible for Linux notifiers to be removed from within the notifier
callback. Allow the same within barebox to avoid subtle bugs.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
lib/notifier.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/notifier.c b/lib/notifier.c
index c55ec22f94c2..3ca557f76df2 100644
--- a/lib/notifier.c
+++ b/lib/notifier.c
@@ -18,9 +18,9 @@ int notifier_chain_unregister(struct notifier_head *nh, struct notifier_block *n
int notifier_call_chain(struct notifier_head *nh, unsigned long val, void *v)
{
- struct notifier_block *entry;
+ struct notifier_block *entry, *tmp;
- list_for_each_entry(entry, &nh->blocks, list)
+ list_for_each_entry_safe(entry, tmp, &nh->blocks, list)
entry->notifier_call(entry, val, v);
return 0;
--
2.39.2
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2024-09-10 8:53 [PATCH] lib: notifier: allow unregistering notifier in notifier_call_chain Ahmad Fatoum
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