linux-kernel - [PATCH v3 02/15] NULL noise: arch/x86/kernel/amd

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Date:	Thu, 05 Mar 2009 20:53:42 +0100
From:	Hannes Eder <hannes@...neseder.net>
To:	trivial@...nel.org
Cc:	Joe Perches <joe@...ches.com>
Subject: [PATCH v3 02/15] NULL noise: arch/x86/kernel/amd_iommu*.c

Fix this sparse warning(s):
  arch/x86/kernel/amd_iommu_init.c:901:37: warning: Using plain integer as NULL pointer
  arch/x86/kernel/amd_iommu.c:1522:24: warning: Using plain integer as NULL pointer

Signed-off-by: Hannes Eder <hannes@...neseder.net>
---
v2: other subject, as suggested by Al Viro
v3: no need to init the variable (thanks to Joe Perches)

 arch/x86/kernel/amd_iommu.c      |    2 +-
 arch/x86/kernel/amd_iommu_init.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 008e522..3f6e1c8 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1519,7 +1519,7 @@ static void *alloc_coherent(struct device *dev, size_t size,
 	flag |= __GFP_ZERO;
 	virt_addr = (void *)__get_free_pages(flag, get_order(size));
 	if (!virt_addr)
-		return 0;
+		return NULL;
 
 	paddr = virt_to_phys(virt_addr);
 
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 42c33ce..9bccd0f 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -898,7 +898,7 @@ static int __init init_exclusion_range(struct ivmd_header *m)
 /* called for unity map ACPI definition */
 static int __init init_unity_map_range(struct ivmd_header *m)
 {
-	struct unity_map_entry *e = 0;
+	struct unity_map_entry *e;
 
 	e = kzalloc(sizeof(*e), GFP_KERNEL);
 	if (e == NULL)

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