omap1: mailbox: kill compile warning

use ioremap and remove unused variable to get rid
of compile warnings.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/arch/arm/mach-omap1/mailbox.c b/arch/arm/mach-omap1/mailbox.c
index caf889aaa248..4f5b3da3d559 100644
--- a/arch/arm/mach-omap1/mailbox.c
+++ b/arch/arm/mach-omap1/mailbox.c
@@ -146,7 +146,6 @@ EXPORT_SYMBOL(mbox_dsp_info);
 static int __devinit omap1_mbox_probe(struct platform_device *pdev)
 {
         struct resource *res;
-        int ret = 0;
 
         if (pdev->num_resources != 2) {
                 dev_err(&pdev->dev, "invalid number of resources: %d\n",
@@ -160,12 +159,18 @@ static int __devinit omap1_mbox_probe(struct platform_device *pdev)
                 dev_err(&pdev->dev, "invalid mem resource\n");
                 return -ENODEV;
         }
-        mbox_base = res->start;
+
+        mbox_base = ioremap(res->start, resource_size(res));
+        if (!mbox_base) {
+                dev_err(&pdev->dev, "ioremap failed\n");
+                return -ENODEV;
+        }
 
         /* DSP IRQ */
         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (unlikely(!res)) {
                 dev_err(&pdev->dev, "invalid irq resource\n");
+                iounmap(mbox_base);
                 return -ENODEV;
         }
         mbox_dsp_info.irq = res->start;