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authorDavid Engraf <david.engraf@sysgo.com>2011-07-20 15:03:39 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-04 21:58:42 -0700
commitf9e4715d434299f8897e3edfed9b6dc90629ffda (patch)
tree7b24a336b6154cb9720a545e58b31d7f5ea959c2
parent52880922de44a7950283451b06db5aec0fc34a99 (diff)
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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>
-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 db84f23..a267dc0 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;