linux-kernel - [PATCH v4 5/5] soc/tegra: pmc: Rate-limit error message about failed to acquire of reset

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]

Date:   Tue,  2 Mar 2021 15:25:02 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter Geis <pgwipeout@...il.com>,
        Matt Merhar <mattmerhar@...tonmail.com>
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 5/5] soc/tegra: pmc: Rate-limit error message about failed to acquire of reset

PMC domain could be easily bombarded with the enable requests if there is
a problem in regards to acquiring reset control of a domain and kernel
log will be flooded with the error message in this case. Hence rate-limit
the message in order to prevent missing other important messages.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/soc/tegra/pmc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index bf29ea22480a..84ab27d85d92 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -868,8 +868,8 @@ static int tegra_genpd_power_off(struct generic_pm_domain *domain)
 
 	err = reset_control_acquire(pg->reset);
 	if (err < 0) {
-		dev_err(dev, "failed to acquire resets for PM domain %s: %d\n",
-			pg->genpd.name, err);
+		dev_err_ratelimited(dev, "failed to acquire resets for PM domain %s: %d\n",
+				    pg->genpd.name, err);
 		return err;
 	}
 
-- 
2.29.2