drivers/rtc/rtc-at91rm9200.c: fix missing iounmap

Add missing iounmap to probe error path and remove.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 11 insertions, 3 deletions

diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index a654071f57df..0eab77b22340 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -299,7 +299,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
                                 "at91_rtc", pdev);
         if (ret) {
                 dev_err(&pdev->dev, "IRQ %d already in use.\n", irq);
-                return ret;
+                goto err_unmap;
         }
 
         /* cpu init code should really have flagged this device as
@@ -311,13 +311,20 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
         rtc = rtc_device_register(pdev->name, &pdev->dev,
                                 &at91_rtc_ops, THIS_MODULE);
         if (IS_ERR(rtc)) {
-                free_irq(irq, pdev);
-                return PTR_ERR(rtc);
+                ret = PTR_ERR(rtc);
+                goto err_free_irq;
         }
         platform_set_drvdata(pdev, rtc);
 
         dev_info(&pdev->dev, "AT91 Real Time Clock driver.\n");
         return 0;
+
+err_free_irq:
+        free_irq(irq, pdev);
+err_unmap:
+        iounmap(at91_rtc_regs);
+
+        return ret;
 }
 
 /*
@@ -334,6 +341,7 @@ static int __exit at91_rtc_remove(struct platform_device *pdev)
         free_irq(irq, pdev);
 
         rtc_device_unregister(rtc);
+        iounmap(at91_rtc_regs);
         platform_set_drvdata(pdev, NULL);
 
         return 0;