[PATCH linux-next] x86: should use NULL pointer to replace plain integer

[zhong jiang]

Fixes the following sparse warnings:

arch/x86/kernel/pci-iommu_table.c:63:37: warning: Using plain integer as NULL 
pointer

Signed-off-by: zhong jiang <zhongji...@huawei.com>
---
 arch/x86/kernel/pci-iommu_table.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/pci-iommu_table.c 
b/arch/x86/kernel/pci-iommu_table.c
index 4dfd90a..2e9006c 100644
--- a/arch/x86/kernel/pci-iommu_table.c
+++ b/arch/x86/kernel/pci-iommu_table.c
@@ -60,7 +60,7 @@ void __init check_iommu_entries(struct iommu_table_entry 
*start,
                        printk(KERN_ERR "CYCLIC DEPENDENCY FOUND! %pS depends 
on %pS and vice-versa. BREAKING IT.\n",
                               p->detect, q->detect);
                        /* Heavy handed way..*/
-                       x->depend = 0;
+                       x->depend = NULL;
                }
        }
 
-- 
1.7.12.4