linux-kernel - [PATCH][next] tpm/eventlog: remove redundant assignment to variabel ret

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Message-Id: <20240411084913.305780-1-colin.i.king@gmail.com>
Date: Thu, 11 Apr 2024 09:49:13 +0100
From: Colin Ian King <colin.i.king@...il.com>
To: Peter Huewe <peterhuewe@....de>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	Jason Gunthorpe <jgg@...pe.ca>,
	linux-integrity@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next] tpm/eventlog: remove redundant assignment to variabel ret

Variable ret is being assigned and error code that is never read, it is
either being re-assigned in an error exit path or never referenced again
on the non-error path. The assignment is redundant and can be removed.

Cleans up clang scan build warning:
drivers/char/tpm/eventlog/acpi.c:145:2: warning: Value stored to 'ret'
is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/char/tpm/eventlog/acpi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/char/tpm/eventlog/acpi.c b/drivers/char/tpm/eventlog/acpi.c
index bd757d836c5c..69533d0bfb51 100644
--- a/drivers/char/tpm/eventlog/acpi.c
+++ b/drivers/char/tpm/eventlog/acpi.c
@@ -142,7 +142,6 @@ int tpm_read_log_acpi(struct tpm_chip *chip)
 
 	log->bios_event_log_end = log->bios_event_log + len;
 
-	ret = -EIO;
 	virt = acpi_os_map_iomem(start, len);
 	if (!virt) {
 		dev_warn(&chip->dev, "%s: Failed to map ACPI memory\n", __func__);
-- 
2.39.2