Re: [lm-sensors] [PATCH] Make lm70_remove a __devexit function

From: Jean Delvare
Date: Sun Dec 17 2006 - 14:20:42 EST


Hi Ralf,

On Sun, 10 Dec 2006 19:21:51 +0000, Ralf Baechle wrote:
> Saves a few bytes on the module.
>
> Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
>
> diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c
> index 6ba8473..7eaae38 100644
> --- a/drivers/hwmon/lm70.c
> +++ b/drivers/hwmon/lm70.c
> @@ -126,7 +126,7 @@ out_dev_reg_failed:
> return status;
> }
>
> -static int __exit lm70_remove(struct spi_device *spi)
> +static int __devexit lm70_remove(struct spi_device *spi)
> {
> struct lm70 *p_lm70 = dev_get_drvdata(&spi->dev);
>

You're not actually saving memory with this change, as __devexit is
resolved to either __exit (i.e. nothing changes) or nothing (i.e. the
code is now always compiled in.) This is a bugfix though as currently
the code may be striped away while the driver still holds a pointer to
it.

Good catch, applied (with a different header comment), thanks.

--
Jean Delvare
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