[patch] dca: missing unlock in unregister_dca_providers()

[Dan Carpenter]

We return here with the lock held and IRQs disabled by mistake.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

diff --git a/drivers/dca/dca-core.c b/drivers/dca/dca-core.c
index b98c676..b4c95be 100644
--- a/drivers/dca/dca-core.c
+++ b/drivers/dca/dca-core.c
@@ -110,8 +110,10 @@ static void unregister_dca_providers(void)
 
 	/* at this point only one domain in the list is expected */
 	domain = list_first_entry(&dca_domains, struct dca_domain, node);
-	if (!domain)
+	if (!domain) {
+		spin_unlock_irqrestore(&dca_lock, flags);
 		return;
+	}
 
 	list_for_each_entry_safe(dca, _dca, &domain->dca_providers, node) {
 		list_del(&dca->node);
--
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