add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/security/device_cgroup.c
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@@ -81,6 +81,17 @@
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 	return -ENOMEM;
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 }
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+static void dev_exceptions_move(struct list_head *dest, struct list_head *orig)
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+{
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+	struct dev_exception_item *ex, *tmp;
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+
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+	lockdep_assert_held(&devcgroup_mutex);
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+
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+	list_for_each_entry_safe(ex, tmp, orig, list) {
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+		list_move_tail(&ex->list, dest);
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+	}
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+}
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+
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 /*
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  * called under devcgroup_mutex
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  */
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@@ -603,11 +614,13 @@
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 	int count, rc = 0;
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 	struct dev_exception_item ex;
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 	struct dev_cgroup *parent = css_to_devcgroup(devcgroup->css.parent);
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+	struct dev_cgroup tmp_devcgrp;
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 	if (!capable(CAP_SYS_ADMIN))
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 		return -EPERM;
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621
 
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 	memset(&ex, 0, sizeof(ex));
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+	memset(&tmp_devcgrp, 0, sizeof(tmp_devcgrp));
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 	b = buffer;
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625
 
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 	switch (*b) {
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@@ -619,15 +632,27 @@
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 			if (!may_allow_all(parent))
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 				return -EPERM;
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-			dev_exception_clean(devcgroup);
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-			devcgroup->behavior = DEVCG_DEFAULT_ALLOW;
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-			if (!parent)
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+			if (!parent) {
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+				devcgroup->behavior = DEVCG_DEFAULT_ALLOW;
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+				dev_exception_clean(devcgroup);
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 				break;
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+			}
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-			rc = dev_exceptions_copy(&devcgroup->exceptions,
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-						 &parent->exceptions);
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+			INIT_LIST_HEAD(&tmp_devcgrp.exceptions);
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+			rc = dev_exceptions_copy(&tmp_devcgrp.exceptions,
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+						 &devcgroup->exceptions);
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 			if (rc)
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 				return rc;
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+			dev_exception_clean(devcgroup);
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+			rc = dev_exceptions_copy(&devcgroup->exceptions,
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+						 &parent->exceptions);
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+			if (rc) {
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+				dev_exceptions_move(&devcgroup->exceptions,
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+						    &tmp_devcgrp.exceptions);
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+				return rc;
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+			}
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+			devcgroup->behavior = DEVCG_DEFAULT_ALLOW;
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+			dev_exception_clean(&tmp_devcgrp);
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 			break;
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 		case DEVCG_DENY:
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 			if (css_has_online_children(&devcgroup->css))