Apr 01 2014

watchdog: via_wdt: replace del_timer by del_timer_sync 

Author: Julia Lawall <Julia.Lawall@lip6.fr>

Use del_timer_sync to ensure that the timer is stopped on all CPUs before
the driver exits.

This change was suggested by Thomas Gleixner.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// 
@r@
identifier i,t,ex;
@@
struct t i = { .remove = ex, };

@@
identifier r.ex;
@@
ex(...) {
  <...
- del_timer
+ del_timer_sync
    (...)
  ...>
}
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Wim Van Sebroeck 

---
 drivers/watchdog/via_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/watchdog/via_wdt.c b/drivers/watchdog/via_wdt.c
index d2cd9f0..56369c4 100644
--- a/drivers/watchdog/via_wdt.c
+++ b/drivers/watchdog/via_wdt.c
@@ -232,7 +232,7 @@ err_out_disable_device:
 static void wdt_remove(struct pci_dev *pdev)
 {
 	watchdog_unregister_device(&wdt_dev);
-	del_timer(&timer);
+	del_timer_sync(&timer);
 	iounmap(wdt_mem);
 	release_mem_region(mmio, VIA_WDT_MMIO_LEN);
 	release_resource(&wdt_res);

qlambert