[PATCH] rapidio: fix get device imbalance on error

[George Acosta]

Fix the imbalance in mport_cdev_open.
Call put_device in error path to balance the
refcount that increased by the get_device.

Fixes: e8de370188d0 ("rapidio: add mport char device driver")
Signed-off-by: George Acosta <acostag.ubu...@gmail.com>
---
 drivers/rapidio/devices/rio_mport_cdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rapidio/devices/rio_mport_cdev.c 
b/drivers/rapidio/devices/rio_mport_cdev.c
index c07ceec3c6d4..3b68e00eb40f 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -1908,6 +1908,7 @@ static int mport_cdev_open(struct inode *inode, struct 
file *filp)
                          sizeof(struct rio_event) * MPORT_EVENT_DEPTH,
                          GFP_KERNEL);
        if (ret < 0) {
+               put_device(&chdev->dev);
                dev_err(&chdev->dev, DRV_NAME ": kfifo_alloc failed\n");
                ret = -ENOMEM;
                goto err_fifo;
-- 
2.17.1