gpio-ml-ioh: cleanup NULL pointer checking

This patch will remove the following sparse warning ("make C=1"):
 * warning: Using plain integer as NULL pointer

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 461958fc2264..af6d4f352d01 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -428,7 +428,7 @@ static int __devinit ioh_gpio_probe(struct pci_dev *pdev,
         }
 
         base = pci_iomap(pdev, 1, 0);
-        if (base == 0) {
+        if (!base) {
                 dev_err(&pdev->dev, "%s : pci_iomap failed", __func__);
                 ret = -ENOMEM;
                 goto err_iomap;