From: Russell King <rmk+ker...@arm.linux.org.uk>

Provide a function to safely take down the hangcheck timer and
workqueue.

Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
 drivers/staging/etnaviv/etnaviv_gpu.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/etnaviv/etnaviv_gpu.c 
b/drivers/staging/etnaviv/etnaviv_gpu.c
index 0547e93972e6..24ed14804ebd 100644
--- a/drivers/staging/etnaviv/etnaviv_gpu.c
+++ b/drivers/staging/etnaviv/etnaviv_gpu.c
@@ -708,6 +708,12 @@ static void hangcheck_handler(unsigned long data)
                hangcheck_timer_reset(gpu);
 }

+static void hangcheck_disable(struct etnaviv_gpu *gpu)
+{
+       del_timer_sync(&gpu->hangcheck_timer);
+       cancel_work_sync(&gpu->recover_work);
+}
+
 /*
  * event management:
  */
@@ -934,9 +940,7 @@ static void etnaviv_gpu_unbind(struct device *dev, struct 
device *master,

        DBG("%s", dev_name(gpu->dev));

-       /* Safely take down hangcheck */
-       del_timer_sync(&gpu->hangcheck_timer);
-       cancel_work_sync(&gpu->recover_work);
+       hangcheck_disable(gpu);

        WARN_ON(!list_empty(&gpu->active_list));

-- 
2.1.4

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