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[73.252.146.110]) by smtp.gmail.com with ESMTPSA id f18sm4434821pfk.144.2021.04.16.20.42.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Apr 2021 20:42:56 -0700 (PDT) From: rentao.bupt@gmail.com To: Wim Van Sebroeck , Guenter Roeck , Joel Stanley , Andrew Jeffery , linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, Tao Ren , Amithash Prasad Subject: [PATCH] watchdog: aspeed: fix hardware timeout calculation Date: Fri, 16 Apr 2021 20:42:49 -0700 Message-Id: <20210417034249.5978-1-rentao.bupt@gmail.com> X-Mailer: git-send-email 2.17.1 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tao Ren Errors-To: openbmc-bounces+openbmc=archiver.kernel.org@lists.ozlabs.org Sender: "openbmc" From: Tao Ren Fix hardware timeout calculation in aspeed_wdt_set_timeout function to ensure the reload value does not exceed the hardware limit. Fixes: efa859f7d786 ("watchdog: Add Aspeed watchdog driver") Reported-by: Amithash Prasad Signed-off-by: Tao Ren --- drivers/watchdog/aspeed_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c index 7e00960651fa..507fd815d767 100644 --- a/drivers/watchdog/aspeed_wdt.c +++ b/drivers/watchdog/aspeed_wdt.c @@ -147,7 +147,7 @@ static int aspeed_wdt_set_timeout(struct watchdog_device *wdd, wdd->timeout = timeout; - actual = min(timeout, wdd->max_hw_heartbeat_ms * 1000); + actual = min(timeout, wdd->max_hw_heartbeat_ms / 1000); writel(actual * WDT_RATE_1MHZ, wdt->base + WDT_RELOAD_VALUE); writel(WDT_RESTART_MAGIC, wdt->base + WDT_RESTART); -- 2.17.1