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Subject[PATCH 1/3] watchdog: at91sam9_wdt: fix secs_to_ticks
Date
Fix the secs_to_ticks macro in case 0 is passed as an argument.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
---
drivers/watchdog/at91sam9_wdt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index 9bd089e..65f4691 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -51,7 +51,7 @@
#define ticks_to_hz_rounddown(t) ((((t) + 1) * HZ) >> 8)
#define ticks_to_hz_roundup(t) (((((t) + 1) * HZ) + 255) >> 8)
#define ticks_to_secs(t) (((t) + 1) >> 8)
-#define secs_to_ticks(s) (((s) << 8) - 1)
+#define secs_to_ticks(s) ((s) ? (((s) << 8) - 1) : 0)

#define WDT_MR_RESET 0x3FFF2FFF

--
1.7.9.5


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