linux-kernel - [PATCH 1/3] clocksource/drivers/time-armada-370-xp: Fix the clock reference

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1471429296-9053-1-git-send-email-daniel.lezcano@linaro.org>
Date:	Wed, 17 Aug 2016 12:21:33 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	mingo@...nel.org
Cc:	tglx@...utronix.de, linux-kernel@...r.kernel.org,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Stefan Roese <sr@...x.de>,
	Ralph Sennhauser <ralph.sennhauser@...il.com>
Subject: [PATCH 1/3] clocksource/drivers/time-armada-370-xp: Fix the clock reference

From: Gregory CLEMENT <gregory.clement@...e-electrons.com>

While converting the init function to return an error, the wrong clock
was get. This lead to wrong clock rate and slow down the kernel. For
example, before the patch a typical boot was around 15s after it was 1
minute slower.

Fixes: 12549e27c63c ("clocksource/drivers/time-armada-370-xp: Convert init function to return error")

Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Tested-by: Stefan Roese <sr@...x.de>
Tested-by: Ralph Sennhauser <ralph.sennhauser@...il.com>
---
 drivers/clocksource/time-armada-370-xp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/clocksource/time-armada-370-xp.c b/drivers/clocksource/time-armada-370-xp.c
index 20ec066..9872992 100644
--- a/drivers/clocksource/time-armada-370-xp.c
+++ b/drivers/clocksource/time-armada-370-xp.c
@@ -357,7 +357,6 @@ static int __init armada_xp_timer_init(struct device_node *np)
 	struct clk *clk = of_clk_get_by_name(np, "fixed");
 	int ret;
 
-	clk = of_clk_get(np, 0);
 	if (IS_ERR(clk)) {
 		pr_err("Failed to get clock");
 		return PTR_ERR(clk);
-- 
1.9.1