drivers: uio: Only allocate new private data when probing device tree node

The same condition should be used both when allocating and freeing the
driver private data.  When dev.of_node is non NULL, allocate a new
private data structure, otherwise use the values from the platform data.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c
index bbdf925..252434c 100644 (file)
--- a/drivers/uio/uio_dmem_genirq.c
+++ b/drivers/uio/uio_dmem_genirq.c
@@ -153,7 +153,7 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev)
        int ret = -EINVAL;
        int i;
 
-       if (!uioinfo) {
+       if (pdev->dev.of_node) {
                int irq;
 
                /* alloc uioinfo for one device */

diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
index ac988ce..c122bca 100644 (file)
--- a/drivers/uio/uio_pdrv_genirq.c
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -102,7 +102,7 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
        int ret = -EINVAL;
        int i;
 
-       if (!uioinfo) {
+       if (pdev->dev.of_node) {
                int irq;
 
                /* alloc uioinfo for one device */