linux-kernel - [PATCH]Replace 0 with NULL when returning a pointer

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Message-ID: <2375c9f90703112347r755bb59ehb17843c87f8e7353@mail.gmail.com>
Date:	Mon, 12 Mar 2007 14:47:43 +0800
From:	"Cong WANG" <xiyou.wangcong@...il.com>
To:	linux-kernel@...r.kernel.org, avi@...ranet.com
Subject: [PATCH]Replace 0 with NULL when returning a pointer

Use NULL to indicate we are returning a pointer rather than an integer
and to eliminate some sparse warnings.

Signed-off-by: Cong WANG <xiyou.wangcong@...il.com>

---
--- drivers/kvm/kvm_main.c.orig	2007-03-11 21:41:23.000000000 +0800
+++ drivers/kvm/kvm_main.c	2007-03-12 14:26:17.000000000 +0800
@@ -205,7 +205,7 @@ static struct kvm_vcpu *vcpu_load(struct
 	mutex_lock(&vcpu->mutex);
 	if (unlikely(!vcpu->vmcs)) {
 		mutex_unlock(&vcpu->mutex);
-		return 0;
+		return NULL;
 	}
 	return kvm_arch_ops->vcpu_load(vcpu);
 }
@@ -799,7 +799,7 @@ struct kvm_memory_slot *gfn_to_memslot(s
 		    && gfn < memslot->base_gfn + memslot->npages)
 			return memslot;
 	}
-	return 0;
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(gfn_to_memslot);
-
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