From: Daniel Mack <zonque@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org, Daniel Mack <zonque@gmail.com>,
Tony Lindgren <tony@atomide.com>
Subject: [PATCH] ARM: OMAP: avoid NULL pointer dereference when no PMIC is configured
Date: Sun, 18 Dec 2011 20:13:48 +0100 [thread overview]
Message-ID: <1324235628-26439-1-git-send-email-zonque@gmail.com> (raw)
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
---
arch/arm/mach-omap2/vp.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/vp.c b/arch/arm/mach-omap2/vp.c
index 66bd700..5407173 100644
--- a/arch/arm/mach-omap2/vp.c
+++ b/arch/arm/mach-omap2/vp.c
@@ -41,6 +41,11 @@ void __init omap_vp_init(struct voltagedomain *voltdm)
u32 val, sys_clk_rate, timeout, waittime;
u32 vddmin, vddmax, vstepmin, vstepmax;
+ if (!voltdm->pmic) {
+ pr_err("%s: No PMIC configured.\n", __func__, voltdm->name);
+ return;
+ }
+
if (!voltdm->read || !voltdm->write) {
pr_err("%s: No read/write API for accessing vdd_%s regs\n",
__func__, voltdm->name);
--
1.7.7.4
WARNING: multiple messages have this Message-ID (diff)
From: zonque@gmail.com (Daniel Mack)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: OMAP: avoid NULL pointer dereference when no PMIC is configured
Date: Sun, 18 Dec 2011 20:13:48 +0100 [thread overview]
Message-ID: <1324235628-26439-1-git-send-email-zonque@gmail.com> (raw)
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
---
arch/arm/mach-omap2/vp.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/vp.c b/arch/arm/mach-omap2/vp.c
index 66bd700..5407173 100644
--- a/arch/arm/mach-omap2/vp.c
+++ b/arch/arm/mach-omap2/vp.c
@@ -41,6 +41,11 @@ void __init omap_vp_init(struct voltagedomain *voltdm)
u32 val, sys_clk_rate, timeout, waittime;
u32 vddmin, vddmax, vstepmin, vstepmax;
+ if (!voltdm->pmic) {
+ pr_err("%s: No PMIC configured.\n", __func__, voltdm->name);
+ return;
+ }
+
if (!voltdm->read || !voltdm->write) {
pr_err("%s: No read/write API for accessing vdd_%s regs\n",
__func__, voltdm->name);
--
1.7.7.4
next reply other threads:[~2011-12-18 19:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-18 19:13 Daniel Mack [this message]
2011-12-18 19:13 ` [PATCH] ARM: OMAP: avoid NULL pointer dereference when no PMIC is configured Daniel Mack
2011-12-19 8:10 ` Igor Grinberg
2011-12-19 8:10 ` Igor Grinberg
2011-12-20 10:00 ` Daniel Mack
2011-12-20 10:00 ` Daniel Mack
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