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Subject[PATCH 3.4 11/92] windfarm: decrement client count when unregistering
Date
From: Paul Bolle <pebolle@tiscali.nl>

3.4.112-rc1 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
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>
Signed-off-by: Zefan Li <lizefan@huawei.com>
---
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 ce88979..004fa10 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -421,7 +421,7 @@ 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);
--
1.9.1
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