From: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
To: Gleb Natapov <gleb@kernel.org>, Paolo Bonzini <pbonzini@redhat.com>
Cc: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] arch: x86: kvm: x86.c: Cleaning up uninitialized variables
Date: Sun, 1 Jun 2014 01:05:05 +0200 [thread overview]
Message-ID: <1401577506-4112-1-git-send-email-rickard_strandqvist@spectrumdigital.se> (raw)
There is a risk that the variable will be used without being initialized.
This was largely found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
arch/x86/kvm/x86.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 20316c6..88bf642 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5691,13 +5691,17 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
outgpa = ((u64)kvm_register_read(vcpu, VCPU_REGS_RDI) << 32) |
(kvm_register_read(vcpu, VCPU_REGS_RSI) & 0xffffffff);
}
-#ifdef CONFIG_X86_64
else {
+#ifdef CONFIG_X86_64
param = kvm_register_read(vcpu, VCPU_REGS_RCX);
ingpa = kvm_register_read(vcpu, VCPU_REGS_RDX);
outgpa = kvm_register_read(vcpu, VCPU_REGS_R8);
- }
+#else
+ param = 0;
+ ingpa = 0;
+ outgpa = 0;
#endif
+ }
code = param & 0xffff;
fast = (param >> 16) & 0x1;
--
1.7.10.4
next reply other threads:[~2014-05-31 23:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-31 23:05 Rickard Strandqvist [this message]
2014-06-03 12:04 ` [PATCH] arch: x86: kvm: x86.c: Cleaning up uninitialized variables Paolo Bonzini
2014-06-03 13:06 ` Michael Tokarev
2014-06-03 13:11 ` Paolo Bonzini
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