From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8081E2566 for ; Tue, 18 Apr 2023 12:27:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 04BB6C433EF; Tue, 18 Apr 2023 12:27:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1681820841; bh=7P5FyF7dWbMmUfz1KqjjZ0wfuS6f2ex6qUAWYh8lfZM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hEF34BHbT/gBCuzdRIV68p3+LR/c3TieHfpxXhNUnSOPLADvFbuqb4lx+e59PT9HC +gM1lQzBE7Ua65P18aCwC61oB5CitFbJIHV9ZA/pgjnteEsxKm43QHJ7gUkKeDItMV sIAQyWtdapim+R71h7vAFamLHRVeVRherWi4Ha/s= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, George Cherian , Guenter Roeck , Wim Van Sebroeck , "Tyler Hicks (Microsoft)" Subject: [PATCH 4.19 52/57] watchdog: sbsa_wdog: Make sure the timeout programming is within the limits Date: Tue, 18 Apr 2023 14:21:52 +0200 Message-Id: <20230418120300.563290267@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230418120258.713853188@linuxfoundation.org> References: <20230418120258.713853188@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: George Cherian commit 000987a38b53c172f435142a4026dd71378ca464 upstream. Make sure to honour the max_hw_heartbeat_ms while programming the timeout value to WOR. Clamp the timeout passed to sbsa_gwdt_set_timeout() to make sure the programmed value is within the permissible range. Fixes: abd3ac7902fb ("watchdog: sbsa: Support architecture version 1") Signed-off-by: George Cherian Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20230209021117.1512097-1-george.cherian@marvell.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Tyler Hicks (Microsoft) Signed-off-by: Greg Kroah-Hartman --- drivers/watchdog/sbsa_gwdt.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/watchdog/sbsa_gwdt.c +++ b/drivers/watchdog/sbsa_gwdt.c @@ -130,6 +130,7 @@ static int sbsa_gwdt_set_timeout(struct struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd); wdd->timeout = timeout; + timeout = clamp_t(unsigned int, timeout, 1, wdd->max_hw_heartbeat_ms / 1000); if (action) writel(gwdt->clk * timeout,