2023-07-14 02:00:11

by Li kunyu

Subject: [PATCH v2] kernel: resource: Remove unnecessary ‘0’ values from err

err is assigned first, so it does not need to initialize the assignment.
Modify __find_resource execution syntax to make it more in line with
commonly used styles.

Signed-off-by: Li kunyu <[email protected]>
---
v2:
Modify __find_resource Execution Syntax.

kernel/resource.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/resource.c b/kernel/resource.c
index b1763b2fd7ef..ee79e8f4f422 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -656,13 +656,14 @@ static int reallocate_resource(struct resource *root, struct resource *old,
resource_size_t newsize,
struct resource_constraint *constraint)
{
- int err=0;
+ int err;
struct resource new = *old;
struct resource *conflict;

write_lock(&resource_lock);

- if ((err = __find_resource(root, old, &new, newsize, constraint)))
+ err = __find_resource(root, old, &new, newsize, constraint);
+ if (err)
goto out;

if (resource_contains(&new, old)) {
--
2.18.2

2023-07-14 02:51:35

by Randy Dunlap

Subject: Re: [PATCH v2] kernel: resource: Remove unneces sary ‘0’ values from err

On 7/15/23 11:24, Li kunyu wrote:
> err is assigned first, so it does not need to initialize the assignment.
> Modify __find_resource execution syntax to make it more in line with
> commonly used styles.
>
> Signed-off-by: Li kunyu <[email protected]>

Reviewed-by: Randy Dunlap <[email protected]>
Thanks.

> ---
> v2:
> Modify __find_resource Execution Syntax.
>
> kernel/resource.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/resource.c b/kernel/resource.c
> index b1763b2fd7ef..ee79e8f4f422 100644
> --- a/kernel/resource.c
> +++ b/kernel/resource.c
> @@ -656,13 +656,14 @@ static int reallocate_resource(struct resource *root, struct resource *old,
> resource_size_t newsize,
> struct resource_constraint *constraint)
> {
> - int err=0;
> + int err;
> struct resource new = *old;
> struct resource *conflict;
>
> write_lock(&resource_lock);
>
> - if ((err = __find_resource(root, old, &new, newsize, constraint)))
> + err = __find_resource(root, old, &new, newsize, constraint);
> + if (err)
> goto out;
>
> if (resource_contains(&new, old)) {

--
~Randy

2023-07-14 08:33:45

by Andy Shevchenko

Subject: Re: [PATCH v2] kernel: resource : Remove unnecessary ‘0’ values from err

On Sun, Jul 16, 2023 at 02:24:28AM +0800, Li kunyu wrote:
> err is assigned first, so it does not need to initialize the assignment.
> Modify __find_resource execution syntax to make it more in line with
> commonly used styles.

FWIW,
Reviewed-by: Andy Shevchenko <[email protected]>

> Signed-off-by: Li kunyu <[email protected]>
> ---
> v2:
> Modify __find_resource Execution Syntax.
>
> kernel/resource.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/resource.c b/kernel/resource.c
> index b1763b2fd7ef..ee79e8f4f422 100644
> --- a/kernel/resource.c
> +++ b/kernel/resource.c
> @@ -656,13 +656,14 @@ static int reallocate_resource(struct resource *root, struct resource *old,
> resource_size_t newsize,
> struct resource_constraint *constraint)
> {
> - int err=0;
> + int err;
> struct resource new = *old;
> struct resource *conflict;
>
> write_lock(&resource_lock);
>
> - if ((err = __find_resource(root, old, &new, newsize, constraint)))
> + err = __find_resource(root, old, &new, newsize, constraint);
> + if (err)
> goto out;
>
> if (resource_contains(&new, old)) {
> --
> 2.18.2
>

--
With Best Regards,
Andy Shevchenko