Re: [PATCH] staging iio: Replace kmalloc with local variable

From: Jonathan Cameron
Date: Tue Jun 07 2011 - 08:52:25 EST


On 06/07/11 13:39, anish wrote:
> From: anish kumar <anish198519851985@xxxxxxxxx>
>
> replaced kmalloc with local variable as I2C(in this case) doesn't require
> kmalloc memory it can do with stack memory.
I've cc'd linux-i2c just to check I'm right about the whole i2c doesn't need
dma safe buffers bit...
>
> Signed-off-by: anish kumar <anish198519851985@xxxxxxxxx>
Acked-by: Jonathan Cameron <jic23@xxxxxxxxx>
> ---
> drivers/staging/iio/adc/max1363_core.c | 5 +----
> 1 files changed, 1 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
> index 1037087..9462230 100644
> --- a/drivers/staging/iio/adc/max1363_core.c
> +++ b/drivers/staging/iio/adc/max1363_core.c
> @@ -207,15 +207,12 @@ static int max1363_write_basic_config(struct i2c_client *client,
> unsigned char d2)
> {
> int ret;
> - u8 *tx_buf = kmalloc(2, GFP_KERNEL);
> + u8 tx_buf[2];
>
> - if (!tx_buf)
> - return -ENOMEM;
> tx_buf[0] = d1;
> tx_buf[1] = d2;
>
> ret = i2c_master_send(client, tx_buf, 2);
> - kfree(tx_buf);
>
> return (ret > 0) ? 0 : ret;
> }

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