Re: [PATCH] dma: timb_dma: Fix compiler warning

From: Lars-Peter Clausen
Date: Tue Feb 19 2013 - 06:35:26 EST


On 02/18/2013 08:59 PM, maxin.john@xxxxxxxxx wrote:
> From: "Maxin B. John" <maxin.john@xxxxxxxx>
>
> Fix this compiler warning:
> warning: 'td_remove' defined but not used [-Wunused-function]
>
> Signed-off-by: Maxin B. John <maxin.john@xxxxxxxx>
> ---
> drivers/dma/timb_dma.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
> index 952f823..f709279 100644
> --- a/drivers/dma/timb_dma.c
> +++ b/drivers/dma/timb_dma.c
> @@ -798,7 +798,7 @@ err_release_region:
>
> }
>
> -static int td_remove(struct platform_device *pdev)
> +static int __exit td_remove(struct platform_device *pdev)
> {

>

While this fixes the warning, it's the wrong fix. The correct fix is to
remove the __exit_p. E.g. something like this:

--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -823,7 +823,7 @@ static struct platform_driver td_driver = {
.owner = THIS_MODULE,
},
.probe = td_probe,
- .remove = __exit_p(td_remove),
+ .remove = td_remove,
};

module_platform_driver(td_driver);
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