ssb: Remove redundant assignment to err

Message ID 1619693230-108804-1-git-send-email-yang.lee@linux.alibaba.com
State New
Headers show
Series
  • ssb: Remove redundant assignment to err
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Commit Message

Yang Li April 29, 2021, 10:47 a.m.
Variable 'err' is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.

Clean up the following clang-analyzer warning:

drivers/ssb/main.c:1306:3: warning: Value stored to 'err' is never read
[clang-analyzer-deadcode.DeadStores]
drivers/ssb/main.c:1312:3: warning: Value stored to 'err' is never read
[clang-analyzer-deadcode.DeadStores]

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
---
 drivers/ssb/main.c | 2 --
 1 file changed, 2 deletions(-)

Comments

Michael Büsch April 29, 2021, 5:21 p.m. | #1
On Thu, 29 Apr 2021 18:47:10 +0800
Yang Li <yang.lee@linux.alibaba.com> wrote:

> Variable 'err' is set to zero but this value is never read as it is
> overwritten with a new value later on, hence it is a redundant
> assignment and can be removed.
> 
> Clean up the following clang-analyzer warning:
> 
> drivers/ssb/main.c:1306:3: warning: Value stored to 'err' is never read
> [clang-analyzer-deadcode.DeadStores]
> drivers/ssb/main.c:1312:3: warning: Value stored to 'err' is never read
> [clang-analyzer-deadcode.DeadStores]
> 
> Reported-by: Abaci Robot <abaci@linux.alibaba.com>
> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
> ---
>  drivers/ssb/main.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
> index 0a26984..ab23554 100644
> --- a/drivers/ssb/main.c
> +++ b/drivers/ssb/main.c
> @@ -1303,13 +1303,11 @@ static int __init ssb_modinit(void)
>  	if (err) {
>  		pr_err("Broadcom 43xx PCI-SSB-bridge initialization failed\n");
>  		/* don't fail SSB init because of this */
> -		err = 0;
>  	}
>  	err = ssb_host_pcmcia_init();
>  	if (err) {
>  		pr_err("PCMCIA host initialization failed\n");
>  		/* don't fail SSB init because of this */
> -		err = 0;
>  	}
>  	err = ssb_gige_init();
>  	if (err) {


The assignment is there just as a visual guide to tell the reader that
we ignore the error.
However, there's also a comment that says the same thing. Therefore:

Acked-by: Michael Büsch <m@bues.ch>

Patch

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 0a26984..ab23554 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1303,13 +1303,11 @@  static int __init ssb_modinit(void)
 	if (err) {
 		pr_err("Broadcom 43xx PCI-SSB-bridge initialization failed\n");
 		/* don't fail SSB init because of this */
-		err = 0;
 	}
 	err = ssb_host_pcmcia_init();
 	if (err) {
 		pr_err("PCMCIA host initialization failed\n");
 		/* don't fail SSB init because of this */
-		err = 0;
 	}
 	err = ssb_gige_init();
 	if (err) {