[PATCH 3.12 026/123] windfarm: decrement client count when unregistering

From: Jiri Slaby
Date: Wed Oct 28 2015 - 09:52:52 EST

From: Paul Bolle <pebolle@xxxxxxxxxx>

3.12-stable review patch. If anyone has any objections, please let me know.


commit fe2b592173ff0274e70dc44d1d28c19bb995aa7c upstream.

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

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

Signed-off-by: Paul Bolle <pebolle@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
drivers/macintosh/windfarm_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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)
blocking_notifier_chain_unregister(&wf_client_list, nb);
- wf_client_count++;
+ wf_client_count--;
if (wf_client_count == 0)

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