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DateSat, 12 Sep 2009 18:04:25 +0200
FromJean Delvare <>
SubjectRe: [PATCH] drivers/i2c: Correct use of request_region/request_mem_region
On Sun, 9 Aug 2009 15:06:43 +0200 (CEST), Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
>
> request_mem_region should be used when ioremap is used subsequently.
> release_region is then correspondingly replaced by release_mem_region.
> (...)
> Signed-off-by: Julia Lawall <julia@diku.dk>
>
> ---
> drivers/i2c/busses/i2c-pnx.c | 7 ++++---
> 1 files changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
> index ec15cff..6ff6c20 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;

Vitaly, can you please ack this change?

--
Jean Delvare


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