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authorDavid Engraf <david.engraf@sysgo.com>2011-07-20 15:03:39 +0200
committerJonas ABERG <jonas.aberg@stericsson.com>2011-10-28 11:16:36 +0200
commita627097c35c649d6b8d7334a37948b353c18a380 (patch)
treef0274dce264c2e390f249e1bd951a0a4b61a1010
parentf68cfe2a785edcd25da02cd6124de97f59a5c9c5 (diff)
watchdog: shwdt: fix usage of mod_timer
commit bea1906620ce72b63f83735c4cc2642b25ec54ae upstream. Fix the usage of mod_timer() and make the driver usable. mod_timer() must be called with an absolute timeout in jiffies. The old implementation used a relative timeout thus the hardware watchdog was never triggered. Signed-off-by: David Engraf <david.engraf@sysgo.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Wim Van sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Change-Id: I28560fcf7ac83005990b6c0f53b668e815f59f7e Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/35675 Tested-by: Per VAHLNE <per.xx.vahlne@stericsson.com> Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
-rw-r--r--drivers/watchdog/shwdt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c
index db84f2322d1..a267dc078da 100644
--- a/drivers/watchdog/shwdt.c
+++ b/drivers/watchdog/shwdt.c
@@ -64,7 +64,7 @@
* misses its deadline, the kernel timer will allow the WDT to overflow.
*/
static int clock_division_ratio = WTCSR_CKS_4096;
-#define next_ping_period(cks) msecs_to_jiffies(cks - 4)
+#define next_ping_period(cks) (jiffies + msecs_to_jiffies(cks - 4))
static const struct watchdog_info sh_wdt_info;
static struct platform_device *sh_wdt_dev;