From: Paul Bolle <pebolle@tiscali.nl>
Date: Fri, 31 Jul 2015 12:08:58 +0000 (+0200)
Subject: windfarm: decrement client count when unregistering
X-Git-Tag: v4.3-rc1~86^2~66
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fe2b592173ff0274e70dc44d1d28c19bb995aa7c;p=karo-tx-linux.git

windfarm: decrement client count when unregistering

wf_unregister_client() increments the client count when a client
unregisters. That is obviously incorrect. Decrement that client count
instead.

Fixes: 75722d3992f5 ("[PATCH] ppc64: Thermal control for SMU based machines")

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 3ee198b65843..cc7ece1712b5 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -435,7 +435,7 @@ int wf_unregister_client(struct notifier_block *nb)
 {
 	mutex_lock(&wf_lock);
 	blocking_notifier_chain_unregister(&wf_client_list, nb);
-	wf_client_count++;
+	wf_client_count--;
 	if (wf_client_count == 0)
 		wf_stop_thread();
 	mutex_unlock(&wf_lock);