[v1] i2c: busses: i2c-designware-pcidrv:- Unmap region obtained by pcim_iomap_regions

[Arvind Yadav]

Release IO memory mapping, if i2c_dw_pci_probe is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
 drivers/i2c/busses/i2c-designware-pcidrv.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c 
b/drivers/i2c/busses/i2c-designware-pcidrv.c
index d6423cf..75e6e27 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -228,8 +228,10 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
        }
 
        dev = devm_kzalloc(&pdev->dev, sizeof(struct dw_i2c_dev), GFP_KERNEL);
-       if (!dev)
-               return -ENOMEM;
+       if (!dev) {
+               r = -ENOMEM;
+               goto error;
+       }
 
        dev->clk = NULL;
        dev->controller = controller;
@@ -241,7 +243,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
        if (controller->setup) {
                r = controller->setup(pdev, controller);
                if (r)
-                       return r;
+                       goto error;
        }
 
        dev->functionality = controller->functionality |
@@ -270,7 +272,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
 
        r = i2c_dw_probe(dev);
        if (r)
-               return r;
+               goto error;
 
        pm_runtime_set_autosuspend_delay(&pdev->dev, 1000);
        pm_runtime_use_autosuspend(&pdev->dev);
@@ -278,6 +280,8 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
        pm_runtime_allow(&pdev->dev);
 
        return 0;
+error:
+       pcim_iounmap_regions(pdev, 1 << 0);
 }
 
 static void i2c_dw_pci_remove(struct pci_dev *pdev)
-- 
1.7.9.5