linux-kernel - [PATCH] hwrng : cleanup initialization

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Message-Id: <20200809150423.31557-1-trix@redhat.com>
Date:   Sun,  9 Aug 2020 08:04:23 -0700
From:   trix@...hat.com
To:     mpm@...enic.com, herbert@...dor.apana.org.au, arnd@...db.de,
        gregkh@...uxfoundation.org
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] hwrng : cleanup initialization

From: Tom Rix <trix@...hat.com>

clang static analysis reports this problem

intel-rng.c:333:2: warning: Assigned value is garbage or undefined
        void __iomem *mem = mem;
        ^~~~~~~~~~~~~~~~~   ~~~

Because mem is assigned before it is used, this is not
a real problem.  But the initialization is strange and not
needed, so remove it.

Signed-off-by: Tom Rix <trix@...hat.com>
---
 drivers/char/hw_random/intel-rng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
index 9f205bd1acc0..eb7db27f9f19 100644
--- a/drivers/char/hw_random/intel-rng.c
+++ b/drivers/char/hw_random/intel-rng.c
@@ -330,7 +330,7 @@ static int __init mod_init(void)
 	int err = -ENODEV;
 	int i;
 	struct pci_dev *dev = NULL;
-	void __iomem *mem = mem;
+	void __iomem *mem;
 	u8 hw_status;
 	struct intel_rng_hw *intel_rng_hw;
 
-- 
2.18.1