i2c-pnx: Correct use of request_region/request_mem_region

request_mem_region should be used when ioremap is used subsequently.
release_region is then correspondingly replaced by release_mem_region.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
expression start,E;
@@

- request_region
+ request_mem_region
  (start,...)
... when != request_mem_region(start,...)
    when != start = E
ioremap(start,...)

@@
expression r.start;
@@

- release_region
+ release_mem_region
  (start,...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index ec15cff556b..6ff6c20f1e7 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -586,7 +586,8 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
         alg_data->mif.timer.data = (unsigned long)i2c_pnx->adapter;
 
         /* Register I/O resource */
-        if (!request_region(alg_data->base, I2C_PNX_REGION_SIZE, pdev->name)) {
+        if (!request_mem_region(alg_data->base, I2C_PNX_REGION_SIZE,
+                                pdev->name)) {
                 dev_err(&pdev->dev,
                        "I/O region 0x%08x for I2C already in use.\n",
                        alg_data->base);
@@ -650,7 +651,7 @@ out_clock:
 out_unmap:
         iounmap((void *)alg_data->ioaddr);
 out_release:
-        release_region(alg_data->base, I2C_PNX_REGION_SIZE);
+        release_mem_region(alg_data->base, I2C_PNX_REGION_SIZE);
 out_drvdata:
         platform_set_drvdata(pdev, NULL);
 out:
@@ -667,7 +668,7 @@ static int __devexit i2c_pnx_remove(struct platform_device *pdev)
         i2c_del_adapter(adap);
         i2c_pnx->set_clock_stop(pdev);
         iounmap((void *)alg_data->ioaddr);
-        release_region(alg_data->base, I2C_PNX_REGION_SIZE);
+        release_mem_region(alg_data->base, I2C_PNX_REGION_SIZE);
         platform_set_drvdata(pdev, NULL);
 
         return 0;