[PATCH] net: fjes: Refactor a string comparison in is_extended_socket_device()

[PATCH] net: fjes: Refactor a string comparison in is_extended_socket_device()

[Markus Elfring]

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 20 Sep 2024 13:56:44 +0200

Assign the return value from a strncmp() call to a local variable
so that an if statement can be omitted accordingly.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/net/fjes/fjes_main.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c
index fad5b6564464..1fae30798899 100644
--- a/drivers/net/fjes/fjes_main.c
+++ b/drivers/net/fjes/fjes_main.c
@@ -54,13 +54,9 @@ static bool is_extended_socket_device(struct acpi_device *device)
 				 str_buf, sizeof(str_buf) - 1);
 	str_buf[result] = 0;

-	if (strncmp(FJES_ACPI_SYMBOL, str_buf, strlen(FJES_ACPI_SYMBOL)) != 0) {
-		kfree(buffer.pointer);
-		return false;
-	}
+	result = strncmp(FJES_ACPI_SYMBOL, str_buf, strlen(FJES_ACPI_SYMBOL));
 	kfree(buffer.pointer);
-
-	return true;
+	return result == 0;
 }

 static int acpi_check_extended_socket_status(struct acpi_device *device)
--
2.46.0

Re: [PATCH] net: fjes: Refactor a string comparison in is_extended_socket_device()

[Simon Horman]

On Fri, Sep 20, 2024 at 02:24:50PM +0200, Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Fri, 20 Sep 2024 13:56:44 +0200
> 
> Assign the return value from a strncmp() call to a local variable
> so that an if statement can be omitted accordingly.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

Hi Markus,

This is an old driver, that doesn't appear to have been under active
development for quite some time.  And I don't think that clean-ups of this
nature are worth the risk of regressions they might introduce.

If we can see bugs, let's fix them.
Else, let's leave it be.

-- 
pw-bot: rejected