Unverified Commit c08840de authored Nov 05, 2024 by openeuler-ci-bot Committed by Gitee Nov 05, 2024

!13039 static_call: Handle module init failure correctly in static_call_del_module()

Merge Pull Request from: @ci-robot 
 
PR sync from: Gu Bowen <gubowen5@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/2B5GIFTQJ3LNH7CJ43IK4ZLWBECC44IX/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAYR8E 
 
Link:https://gitee.com/openeuler/kernel/pulls/13039

 

Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>

parents bbd75ebc af962cfc

kernel/static_call_inline.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -405,6 +405,17 @@ static void static_call_del_module(struct module *mod)

		for (site = start; site < stop; site++) {
		key = static_call_key(site);

		/*
		* If the key was not updated due to a memory allocation
		* failure in __static_call_init() then treating key::sites
		* as key::mods in the code below would cause random memory
		* access and #GP. In that case all subsequent sites have
		* not been touched either, so stop iterating.
		*/
		if (!static_call_key_has_mods(key))
		break;

		if (key == prev_key)
		continue;