On 13/12/15 15:15, Bhaktipriya Shridhar wrote:
> The variable u8 **rx_p, is a pointer-to-pointer and hence the check
> should
> be "if (!*rx_p)" and not "if (!rx_p)".
> In the earlier version, checkpatch.pl gave the following check, which
> was incorrect:
> CHECK: Comparison to NULL could be written "!rx_p"
> + if (*rx_p == NULL) {
>
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx>
Applied to the togreg branch of iio.git with the addition of the driver name
in the patch title.
Thanks
Jonathan
> ---
> Changes in v3:
> - Replaced "if (!rx_p)" with "if (!*rx_p)"
> - Changes are made on the original code
>
> drivers/staging/iio/accel/sca3000_ring.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
> index 20b878d..1920dc60 100644
> --- a/drivers/staging/iio/accel/sca3000_ring.c
> +++ b/drivers/staging/iio/accel/sca3000_ring.c
> @@ -48,7 +48,7 @@ static int sca3000_read_data(struct sca3000_state *st,
> }
> };
> *rx_p = kmalloc(len, GFP_KERNEL);
> - if (*rx_p == NULL) {
> + if (!*rx_p) {
> ret = -ENOMEM;
> goto error_ret;
> }
>
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