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shwdt: fix usage of mod_timer

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This patch fixes the usage of mod_timer and makes 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>
This commit is contained in:
David Engraf 2011-07-20 13:03:39 +00:00 committed by Paul Mundt
parent 3f7e5e2423
commit b4300b72cf
1 changed files with 1 additions and 1 deletions
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2
drivers/watchdog/shwdt.c
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@ -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;