| 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
| ||
|
Message-Id: <20190226120633.18200-4-brgl@bgdev.pl>
Date: Tue, 26 Feb 2019 13:06:25 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
David Lechner <david@...hnology.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org,
Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH v3 03/11] ARM: davinci: WARN_ON() if clk_get() fails
From: Bartosz Golaszewski <bgolaszewski@...libre.com>
Currently the timer code checks if the clock pointer passed to it is
good (!IS_ERR(clk)). The new clocksource driver expects the clock to
be functional and doesn't perform any checks so emit a warning if
clk_get() fails. Apply this to all davinci platforms.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
---
arch/arm/mach-davinci/da830.c | 4 ++++
arch/arm/mach-davinci/da850.c | 4 ++++
arch/arm/mach-davinci/dm355.c | 4 ++++
arch/arm/mach-davinci/dm365.c | 4 ++++
arch/arm/mach-davinci/dm644x.c | 4 ++++
arch/arm/mach-davinci/dm646x.c | 4 ++++
6 files changed, 24 insertions(+)
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index 63511f638ce4..d242ce06f7e5 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -750,6 +750,10 @@ void __init da830_init_time(void)
da830_pll_init(NULL, pll, NULL);
clk = clk_get(NULL, "timer0");
+ if (WARN_ON(IS_ERR(clk))) {
+ pr_err("Unable to get the timer clock\n");
+ return;
+ }
davinci_timer_init(clk);
}
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 67ab71ba3ad3..72d64d39d42a 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -680,6 +680,10 @@ void __init da850_init_time(void)
da850_pll0_init(NULL, pll0, cfgchip);
clk = clk_get(NULL, "timer0");
+ if (WARN_ON(IS_ERR(clk))) {
+ pr_err("Unable to get the timer clock\n");
+ return;
+ }
davinci_timer_init(clk);
}
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 4a482445b9a2..57c5a660758e 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -742,6 +742,10 @@ void __init dm355_init_time(void)
dm355_psc_init(NULL, psc);
clk = clk_get(NULL, "timer0");
+ if (WARN_ON(IS_ERR(clk))) {
+ pr_err("Unable to get the timer clock\n");
+ return;
+ }
davinci_timer_init(clk);
}
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 8e0a77315add..1d82bb630d11 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -783,6 +783,10 @@ void __init dm365_init_time(void)
dm365_psc_init(NULL, psc);
clk = clk_get(NULL, "timer0");
+ if (WARN_ON(IS_ERR(clk))) {
+ pr_err("Unable to get the timer clock\n");
+ return;
+ }
davinci_timer_init(clk);
}
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index cecc7ceb8d34..2b0e921aa755 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -678,6 +678,10 @@ void __init dm644x_init_time(void)
dm644x_psc_init(NULL, psc);
clk = clk_get(NULL, "timer0");
+ if (WARN_ON(IS_ERR(clk))) {
+ pr_err("Unable to get the timer clock\n");
+ return;
+ }
davinci_timer_init(clk);
}
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index f33392f77a03..7e5af984ed9f 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -662,6 +662,10 @@ void __init dm646x_init_time(unsigned long ref_clk_rate,
dm646x_psc_init(NULL, psc);
clk = clk_get(NULL, "timer0");
+ if (WARN_ON(IS_ERR(clk))) {
+ pr_err("Unable to get the timer clock\n");
+ return;
+ }
davinci_timer_init(clk);
}
--
2.20.1
Powered by blists - more mailing lists