2023-07-10 06:58:56

by Ran Sun

Subject: [PATCH] drm/nouveau/i2c: do not use assignment in if condition

Assignments in if condition are less readable and error-prone. Fixes
also checkpatch warning:

ERROR: do not use assignment in if condition

Signed-off-by: Ran Sun <[email protected]>
---
drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
index d063d0dc13c5..098051d3755c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
@@ -209,7 +209,8 @@ nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func
*func,
struct nvkm_i2c_pad *pad, int id,
struct nvkm_i2c_aux **paux)
{
- if (!(*paux = kzalloc(sizeof(**paux), GFP_KERNEL)))
+ *paux = kzalloc(sizeof(**paux), GFP_KERNEL);
+ if (!*paux)
return -ENOMEM;
return nvkm_i2c_aux_ctor(func, pad, id, *paux);
}

2023-07-13 09:26:40

by Karol Herbst

Subject: Re: [PATCH] drm/nouveau/i2c: do not use assignment in if condition

On Mon, Jul 10, 2023 at 9:23 AM <[email protected]> wrote:
>
> Assignments in if condition are less readable and error-prone. Fixes
> also checkpatch warning:
>
> ERROR: do not use assignment in if condition
>
> Signed-off-by: Ran Sun <[email protected]>
> ---
> drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
> b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
> index d063d0dc13c5..098051d3755c 100644
> --- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
> @@ -209,7 +209,8 @@ nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func
> *func,
> struct nvkm_i2c_pad *pad, int id,
> struct nvkm_i2c_aux **paux)
> {
> - if (!(*paux = kzalloc(sizeof(**paux), GFP_KERNEL)))
> + *paux = kzalloc(sizeof(**paux), GFP_KERNEL);
> + if (!*paux)
> return -ENOMEM;
> return nvkm_i2c_aux_ctor(func, pad, id, *paux);
> }
>

Reviewed-by: Karol Herbst <[email protected]>