watchdog: atlas7_wdt: test clock rate to avoid division by 0
authorWolfram Sang <wsa+renesas@sang-engineering.com>
Wed, 2 Mar 2016 22:33:36 +0000 (23:33 +0100)
committerWim Van Sebroeck <wim@iguana.be>
Wed, 16 Mar 2016 20:09:08 +0000 (21:09 +0100)
commitccc8208d0855a5b02a4fc49c141b6f1dbf282304
treefe95e7e1685fe94fc97697801e759eccb03eac67
parent882dec1ff125e9020157d27672ec11c2fdfb82c2
watchdog: atlas7_wdt: test clock rate to avoid division by 0

The clk API may return 0 on clk_get_rate, so we should check the result before
using it as a divisor.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
drivers/watchdog/atlas7_wdt.c