USB: musb: unmap base if we can't probe

when probe() fails, we should iounmap() the mapped address.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 3e9b3b0e9c0d..de7b3770f6ee 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2110,6 +2110,7 @@ static int __init musb_probe(struct platform_device *pdev)
 {
         struct device   *dev = &pdev->dev;
         int             irq = platform_get_irq(pdev, 0);
+        int             status;
         struct resource *iomem;
         void __iomem    *base;
 
@@ -2127,7 +2128,12 @@ static int __init musb_probe(struct platform_device *pdev)
         /* clobbered by use_dma=n */
         orig_dma_mask = dev->dma_mask;
 #endif
-        return musb_init_controller(dev, irq, base);
+
+        status = musb_init_controller(dev, irq, base);
+        if (status < 0)
+                iounmap(base);
+
+        return status;
 }
 
 static int __exit musb_remove(struct platform_device *pdev)