From: Zijun Hu <zijun.hu@oss.qualcomm.com>

Local variable @ret is not used for return value in misc_init().

Give it a different name @pde.

Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
---
 drivers/char/misc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index d5accc10a110098f7090dd0f900bc5fae5f75f74..f5ef8c175adb559e67dfe905d43d1404b249cc9e 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -289,9 +289,9 @@ EXPORT_SYMBOL(misc_deregister);
 static int __init misc_init(void)
 {
 	int err;
-	struct proc_dir_entry *ret;
+	struct proc_dir_entry *pde;
 
-	ret = proc_create_seq("misc", 0, NULL, &misc_seq_ops);
+	pde = proc_create_seq("misc", 0, NULL, &misc_seq_ops);
 	err = class_register(&misc_class);
 	if (err)
 		goto fail_remove;
@@ -305,7 +305,7 @@ static int __init misc_init(void)
 	pr_err("unable to get major %d for misc devices\n", MISC_MAJOR);
 	class_unregister(&misc_class);
 fail_remove:
-	if (ret)
+	if (pde)
 		remove_proc_entry("misc", NULL);
 	return err;
 }

-- 
2.34.1

On Fri, Jun 20, 2025 at 10:35:19PM +0800, Zijun Hu wrote:
> From: Zijun Hu <zijun.hu@oss.qualcomm.com>
> 
> Local variable @ret is not used for return value in misc_init().
> 
> Give it a different name @pde.
> 
> Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
> ---
>  drivers/char/misc.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/char/misc.c b/drivers/char/misc.c
> index d5accc10a110098f7090dd0f900bc5fae5f75f74..f5ef8c175adb559e67dfe905d43d1404b249cc9e 100644
> --- a/drivers/char/misc.c
> +++ b/drivers/char/misc.c
> @@ -289,9 +289,9 @@ EXPORT_SYMBOL(misc_deregister);
>  static int __init misc_init(void)
>  {
>  	int err;
> -	struct proc_dir_entry *ret;
> +	struct proc_dir_entry *pde;

"pde" is an odd name.

> -	ret = proc_create_seq("misc", 0, NULL, &misc_seq_ops);
> +	pde = proc_create_seq("misc", 0, NULL, &misc_seq_ops);

Why not "misc_proc_file" as a better name?

>  	err = class_register(&misc_class);
>  	if (err)
>  		goto fail_remove;
> @@ -305,7 +305,7 @@ static int __init misc_init(void)
>  	pr_err("unable to get major %d for misc devices\n", MISC_MAJOR);
>  	class_unregister(&misc_class);
>  fail_remove:
> -	if (ret)
> +	if (pde)

Again, "pde" is a rough name, let's pick a better one please.

thanks,

greg k-h