drivers: atm, char fix integer as NULL pointer warnings

drivers/atm/nicstar.c:418:25: warning: Using plain integer as NULL pointer
drivers/char/drm/r128_cce.c:820:25: warning: Using plain integer as NULL pointer
drivers/char/tty_io.c:1183:10: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
index 38c769f8d2b7..3da804b1627d 100644
--- a/drivers/atm/nicstar.c
+++ b/drivers/atm/nicstar.c
@@ -415,7 +415,7 @@ static int __devinit ns_init_card(int i, struct pci_dev *pcidev)
    card->pcidev = pcidev;
    membase = pci_resource_start(pcidev, 1);
    card->membase = ioremap(membase, NS_IOREMAP_SIZE);
-   if (card->membase == 0)
+   if (!card->membase)
    {
       printk("nicstar%d: can't ioremap() membase.\n",i);
       error = 3;