drivers/net/netxen: fix sparse warnings: use NULL pointer instead of plain integer

Fix this sparse warnings:

  drivers/net/netxen/netxen_nic_hw.c:1462:18: warning: Using plain integer as NULL pointer
  drivers/net/netxen/netxen_nic_hw.c:1536:18: warning: Using plain integer as NULL pointer

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 86379fdd8b0e..aa6e603bfcbf 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -1459,7 +1459,7 @@ static int netxen_nic_pci_mem_read_direct(struct netxen_adapter *adapter,
                         mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
                 else
                         mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
-                if (mem_ptr == 0UL) {
+                if (mem_ptr == NULL) {
                         *(uint8_t  *)data = 0;
                         return -1;
                 }
@@ -1533,7 +1533,7 @@ netxen_nic_pci_mem_write_direct(struct netxen_adapter *adapter, u64 off,
                         mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
                 else
                         mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
-                if (mem_ptr == 0UL)
+                if (mem_ptr == NULL)
                         return -1;
                 addr = mem_ptr;
                 addr += start & (PAGE_SIZE - 1);