uio: clean uioinfo when uninstall uio driver

The uioinfo should be cleaned up when uninstall, otherwise re-install failure of uio_pdrv_genirq.ko will happen. Signed-off-by: Jie Zhou <[email protected]> Signed-off-by: Aisheng Dong <[email protected]> Signed-off-by: Hans J. Koch <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
tong646591 · Apr 19, 2011 · 47296b1 · 47296b1
1 parent c6edc42
commit 47296b1
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
@@ -189,6 +189,10 @@ static int uio_pdrv_genirq_remove(struct platform_device *pdev)
 
 	uio_unregister_device(priv->uioinfo);
 	pm_runtime_disable(&pdev->dev);
+
+	priv->uioinfo->handler = NULL;
+	priv->uioinfo->irqcontrol = NULL;
+
 	kfree(priv);
 	return 0;
 }