drivers: uio_dmem_genirq: Fix memory leak in uio_dmem_genirq_probe()

When platform_get_irq() is failed after "priv" allocated,
it need to free "priv". But the label of bad0 doesn't try
to free about "priv". So this patch changes that lable to "bad1".
But "bad1" has pm_runtime_disable() call, this function should
be called when uio_register_device() is failed. So it is moved
into handling error for uio_register_device().

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Hans J. Koch <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c
index 1270f3b26139..8d0bba469566 100644
--- a/drivers/uio/uio_dmem_genirq.c
+++ b/drivers/uio/uio_dmem_genirq.c
@@ -204,7 +204,7 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev)
                 ret = platform_get_irq(pdev, 0);
                 if (ret < 0) {
                         dev_err(&pdev->dev, "failed to get IRQ\n");
-                        goto bad0;
+                        goto bad1;
                 }
                 uioinfo->irq = ret;
         }
@@ -275,6 +275,7 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev)
         ret = uio_register_device(&pdev->dev, priv->uioinfo);
         if (ret) {
                 dev_err(&pdev->dev, "unable to register uio device\n");
+                pm_runtime_disable(&pdev->dev);
                 goto bad1;
         }
 
@@ -282,7 +283,6 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev)
         return 0;
  bad1:
         kfree(priv);
-        pm_runtime_disable(&pdev->dev);
  bad0:
         /* kfree uioinfo for OF */
         if (pdev->dev.of_node)