[PATCH v2 02/15] NULL noise: arch/x86/kernel/amd_iommu*.c

[Hannes Eder <hannes@hanneseder.net>]

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@hanneseder.net>
---
v2: other subject, as suggested by Al Viro

 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..f80cca9 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 = NULL;
 
 	e = kzalloc(sizeof(*e), GFP_KERNEL);
 	if (e == NULL)