From: John Crispin Date: Wed, 24 Aug 2011 08:31:39 +0000 (+0200) Subject: watchdog: lantiq: fix watchdogs timeout handling X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9cfce47b146cb492b8d5e7b40d6f7b3ea1963d50;p=linux-beck.git watchdog: lantiq: fix watchdogs timeout handling The enable function was using the global timeout variable for local operations. This resulted in the value of the global variable being corrupted, thus breaking the code. Signed-off-by: John Crispin Signed-off-by: Thomas Langer Signed-off-by: Wim Van Sebroeck Cc: linux-watchdog@vger.kernel.org Cc: linux-mips@linux-mips.org --- diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c index 7d82adac1cb2..102aed0efbf1 100644 --- a/drivers/watchdog/lantiq_wdt.c +++ b/drivers/watchdog/lantiq_wdt.c @@ -51,16 +51,16 @@ static int ltq_wdt_ok_to_close; static void ltq_wdt_enable(void) { - ltq_wdt_timeout = ltq_wdt_timeout * + unsigned long int timeout = ltq_wdt_timeout * (ltq_io_region_clk_rate / LTQ_WDT_DIVIDER) + 0x1000; - if (ltq_wdt_timeout > LTQ_MAX_TIMEOUT) - ltq_wdt_timeout = LTQ_MAX_TIMEOUT; + if (timeout > LTQ_MAX_TIMEOUT) + timeout = LTQ_MAX_TIMEOUT; /* write the first password magic */ ltq_w32(LTQ_WDT_PW1, ltq_wdt_membase + LTQ_WDT_CR); /* write the second magic plus the configuration and new timeout */ ltq_w32(LTQ_WDT_SR_EN | LTQ_WDT_SR_PWD | LTQ_WDT_SR_CLKDIV | - LTQ_WDT_PW2 | ltq_wdt_timeout, ltq_wdt_membase + LTQ_WDT_CR); + LTQ_WDT_PW2 | timeout, ltq_wdt_membase + LTQ_WDT_CR); } static void