linux-kernel - [PATCH 01/52] KVM: Remove ptr comparisons to 0

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Date:	Sun, 30 Dec 2007 09:09:47 +0200
From:	Avi Kivity <avi@...ranet.com>
To:	linux-kernel@...r.kernel.org, kvm-devel@...ts.sourceforge.net
Cc:	Joe Perches <joe@...ches.com>
Subject: [PATCH 01/52] KVM: Remove ptr comparisons to 0

From: Joe Perches <joe@...ches.com>

Fix sparse warnings "Using plain integer as NULL pointer"

Signed-off-by: Joe Perches <joe@...ches.com>
Signed-off-by: Avi Kivity <avi@...ranet.com>
---
 drivers/kvm/kvm.h      |    2 +-
 drivers/kvm/kvm_main.c |    3 ++-
 drivers/kvm/svm.c      |    2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index e34e246..c4ad66b 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -398,7 +398,7 @@ static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
 
 static inline int irqchip_in_kernel(struct kvm *kvm)
 {
-	return pic_irqchip(kvm) != 0;
+	return pic_irqchip(kvm) != NULL;
 }
 
 struct descriptor_table {
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index bce4216..7a871e0 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -1449,7 +1449,8 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
 
 	/* A kmem cache lets us meet the alignment requirements of fx_save. */
 	kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size,
-					   __alignof__(struct kvm_vcpu), 0, 0);
+					   __alignof__(struct kvm_vcpu),
+					   0, NULL);
 	if (!kvm_vcpu_cache) {
 		r = -ENOMEM;
 		goto out_free_4;
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 0f0958d..762302a 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1271,7 +1271,7 @@ static int handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 		       exit_code);
 
 	if (exit_code >= ARRAY_SIZE(svm_exit_handlers)
-	    || svm_exit_handlers[exit_code] == 0) {
+	    || !svm_exit_handlers[exit_code]) {
 		kvm_run->exit_reason = KVM_EXIT_UNKNOWN;
 		kvm_run->hw.hardware_exit_reason = exit_code;
 		return 0;
-- 
1.5.3.7

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