From: Tim Deegan <tim@xen.org>
To: xen-devel@lists.xen.org
Cc: Jan Beulich <jbeulich@suse.com>
Subject: [PATCH 9/9] acpi/pmstat: fix check for empty name strings.
Date: Thu, 12 Sep 2013 13:15:30 +0100 [thread overview]
Message-ID: <1378988130-24172-10-git-send-email-tim@xen.org> (raw)
In-Reply-To: <1378988130-24172-1-git-send-email-tim@xen.org>
These 'name' strings are actually arrays in their structs. So the
address is never NULL: instead, we should check the first character to
detect cases where the field wasn't initialized.
Coverity CID 1055633
Signed-off-by: Tim Deegan <tim@xen.org>
Cc: Jan Beulich <jbeulich@suse.com>
---
xen/drivers/acpi/pmstat.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/drivers/acpi/pmstat.c b/xen/drivers/acpi/pmstat.c
index f8a9c85..daac2da 100644
--- a/xen/drivers/acpi/pmstat.c
+++ b/xen/drivers/acpi/pmstat.c
@@ -264,13 +264,13 @@ static int get_cpufreq_para(struct xen_sysctl_pm_op *op)
op->u.get_para.scaling_max_freq = policy->max;
op->u.get_para.scaling_min_freq = policy->min;
- if ( cpufreq_driver->name )
+ if ( cpufreq_driver->name[0] )
strlcpy(op->u.get_para.scaling_driver,
cpufreq_driver->name, CPUFREQ_NAME_LEN);
else
strlcpy(op->u.get_para.scaling_driver, "Unknown", CPUFREQ_NAME_LEN);
- if ( policy->governor->name )
+ if ( policy->governor->name[0] )
strlcpy(op->u.get_para.scaling_governor,
policy->governor->name, CPUFREQ_NAME_LEN);
else
--
1.7.10.4
next prev parent reply other threads:[~2013-09-12 12:15 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-12 12:15 More Coverity-reported issues Tim Deegan
2013-09-12 12:15 ` [PATCH 1/9] x86/mm: Don't dereference p2m pointer before NULL check Tim Deegan
2013-09-12 12:15 ` [PATCH 2/9] passthrough/amd: Drop unnecessary lock lookup Tim Deegan
2013-09-12 13:35 ` Jan Beulich
2013-09-12 12:15 ` [PATCH 3/9] passthrough/amd: Missing 'break' Tim Deegan
2013-09-17 15:04 ` Suravee Suthikulpanit
2013-09-12 12:15 ` [PATCH 4/9] passthrough/amd: Shuffle declaration Tim Deegan
2013-09-12 13:38 ` Jan Beulich
2013-09-12 13:44 ` Tim Deegan
2013-09-12 14:03 ` Jan Beulich
2013-09-17 15:19 ` Suravee Suthikulpanit
2013-09-12 12:15 ` [PATCH 5/9] cpufreq: avoid integer overflows Tim Deegan
2013-09-12 13:49 ` Jan Beulich
2013-09-13 7:18 ` Liu, Jinsong
2013-09-12 12:15 ` [PATCH 6/9] cpufreq: missing check of copy_from_guest() Tim Deegan
2013-09-12 13:54 ` Jan Beulich
2013-09-13 7:18 ` Liu, Jinsong
2013-09-12 12:15 ` [PATCH 7/9] ehci-dbgp: avoid division by zero Tim Deegan
2013-09-12 13:55 ` Jan Beulich
2013-09-12 12:15 ` [PATCH 8/9] ehci-dbgp: drop dead code Tim Deegan
2013-09-12 14:01 ` Jan Beulich
2013-09-12 12:15 ` Tim Deegan [this message]
2013-09-12 14:02 ` [PATCH 9/9] acpi/pmstat: fix check for empty name strings Jan Beulich
2013-09-12 13:11 ` More Coverity-reported issues Andrew Cooper
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