diff mbox

[4/7] iscsi-target: Make a variable initialisation a bit more obvious in iscsi_create_default_params()

Message ID 566C3225.4070100@users.sourceforge.net (mailing list archive)
State New, archived
Headers show

Commit Message

SF Markus Elfring Dec. 12, 2015, 2:41 p.m. UTC
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 12 Dec 2015 13:44:06 +0100

The variable "pl" was declared and immediately assigned a return value
from a function call in a separate statement.

* Let us express the desired variable initialisation directly.

* Avoid the repetition of the data type specification for the
  involved memory allocation according to the Linux coding
  style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/target/iscsi/iscsi_target_parameters.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Julia Lawall Dec. 12, 2015, 2:45 p.m. UTC | #1
On Sat, 12 Dec 2015, SF Markus Elfring wrote:

> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 12 Dec 2015 13:44:06 +0100
>
> The variable "pl" was declared and immediately assigned a return value
> from a function call in a separate statement.
>
> * Let us express the desired variable initialisation directly.
>
> * Avoid the repetition of the data type specification for the
>   involved memory allocation according to the Linux coding
>   style convention.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  drivers/target/iscsi/iscsi_target_parameters.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
> index e0b173d..3f3842f 100644
> --- a/drivers/target/iscsi/iscsi_target_parameters.c
> +++ b/drivers/target/iscsi/iscsi_target_parameters.c
> @@ -200,9 +200,8 @@ free_param:
>  int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
>  {
>  	struct iscsi_param *param;
> -	struct iscsi_param_list *pl;
> +	struct iscsi_param_list *pl = kzalloc(sizeof(*pl), GFP_KERNEL);
>
> -	pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);

I don't see the benefit of this change, and the pattern assignment ->
failure test becomes more obscure.

julia

>  	if (!pl) {
>  		pr_err("Unable to allocate memory for"
>  				" struct iscsi_param_list.\n");
> --
> 2.6.3
>
> --
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SF Markus Elfring Dec. 12, 2015, 3:02 p.m. UTC | #2
>> @@ -200,9 +200,8 @@ free_param:
>>  int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
>>  {
>>  	struct iscsi_param *param;
>> -	struct iscsi_param_list *pl;
>> +	struct iscsi_param_list *pl = kzalloc(sizeof(*pl), GFP_KERNEL);
>>
>> -	pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
> 
> I don't see the benefit of this change, and the pattern assignment ->
> failure test becomes more obscure.

Are there any more software developers who prefer to specify
such a variable initialisation on a single line?

Does the proposed small source code reduction matter for you?

Regards,
Markus
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diff mbox

Patch

diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index e0b173d..3f3842f 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -200,9 +200,8 @@  free_param:
 int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
 {
 	struct iscsi_param *param;
-	struct iscsi_param_list *pl;
+	struct iscsi_param_list *pl = kzalloc(sizeof(*pl), GFP_KERNEL);
 
-	pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
 	if (!pl) {
 		pr_err("Unable to allocate memory for"
 				" struct iscsi_param_list.\n");