Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1290629 > unrolled thread

[PATCH v3] Staging: iio: accel: Fixed NULL comparison style

Started byBhaktipriya Shridhar <bhaktipriya96@gmail.com>
First post2015-12-13 16:20 +0100
Last post2015-12-19 17:50 +0100
Articles 2 — 2 participants

Back to article view | Back to linux.kernel


Contents

  [PATCH v3] Staging: iio: accel: Fixed NULL comparison style Bhaktipriya Shridhar <bhaktipriya96@gmail.com> - 2015-12-13 16:20 +0100
    Re: [PATCH v3] Staging: iio: accel: Fixed NULL comparison style Jonathan Cameron <jic23@kernel.org> - 2015-12-19 17:50 +0100

#1290629 — [PATCH v3] Staging: iio: accel: Fixed NULL comparison style

FromBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Date2015-12-13 16:20 +0100
Subject[PATCH v3] Staging: iio: accel: Fixed NULL comparison style
Message-ID<qFgBk-1zr-3@gated-at.bofh.it>
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@gmail.com>
---
 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;
 	}
-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [next] | [standalone]


#1295403

FromJonathan Cameron <jic23@kernel.org>
Date2015-12-19 17:50 +0100
Message-ID<qHsRH-5Ed-3@gated-at.bofh.it>
In reply to#1290629
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@gmail.com>
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;
>  	}
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [prev] | [standalone]


Back to top | Article view | linux.kernel


csiph-web