2015-12-13 09:54:38

by Bhaktipriya Shridhar

Subject: [PATCH] Staging: iio: accel: Fixed NULL comparison style

This patch fixes checkpatch.pl check:
CHECK: Comparison to NULL could be written "!rx_p"
+ if (*rx_p == NULL) {

Signed-off-by: Bhaktipriya Shridhar <[email protected]>
---
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..5339b10 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;
}
--
2.1.4

2015-12-13 11:08:10

by Dan Carpenter

Subject: Re: [PATCH] Staging: iio: accel: Fixed NULL comparison style

On Sun, Dec 13, 2015 at 12:54:27PM +0300, Bhaktipriya Shridhar wrote:
> This patch fixes checkpatch.pl check:
> CHECK: Comparison to NULL could be written "!rx_p"
> + if (*rx_p == NULL) {
>

Actually it should be "if (!*rx_p)". checkpatch.pl appears to have a
bug here.

regards,
dan carpenter

> Signed-off-by: Bhaktipriya Shridhar <[email protected]>
> ---
> 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..5339b10 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;
> }
> --
> 2.1.4