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

Julia Lawall
2015-12-12T14:46:05Z

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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