Commit bea19066 authored by David Engraf's avatar David Engraf Committed by Wim Van Sebroeck

watchdog: shwdt: fix usage of mod_timer

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: default avatarDavid Engraf <>
Signed-off-by: default avatarPaul Mundt <>
Signed-off-by: default avatarWim Van sebroeck <>
Signed-off-by: default avatarAndrew Morton <>
Cc: stable <>
parent c027a474
......@@ -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;
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