linux-kernel - [PATCH] fpga: stratix10-soc: Do not use ret uninitialized in s10

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Message-Id: <20211129161009.3625548-1-nathan@kernel.org>
Date:   Mon, 29 Nov 2021 09:10:09 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Moritz Fischer <mdf@...nel.org>, Wu Hao <hao.wu@...el.com>,
        Xu Yilun <yilun.xu@...el.com>
Cc:     Tom Rix <trix@...hat.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Russ Weight <russell.h.weight@...el.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        linux-fpga@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH] fpga: stratix10-soc: Do not use ret uninitialized in s10_probe()

Clang warns:

drivers/fpga/stratix10-soc.c:431:9: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
        return ret;
               ^~~
drivers/fpga/stratix10-soc.c:402:9: note: initialize the variable 'ret' to silence this warning
        int ret;
               ^
                = 0
1 warning generated.

ret is only assigned in an error path now so just return 0 directly.

Fixes: 4ba0b2c294fe ("fpga: mgr: Use standard dev_release for class driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1517
Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
 drivers/fpga/stratix10-soc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
index 737d14c6e0de..357cea58ec98 100644
--- a/drivers/fpga/stratix10-soc.c
+++ b/drivers/fpga/stratix10-soc.c
@@ -428,7 +428,7 @@ static int s10_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, mgr);
-	return ret;
+	return 0;
 
 probe_err:
 	stratix10_svc_free_channel(priv->chan);

base-commit: 8886a579744fbfa53e69aa453ed10ae3b1f9abac
-- 
2.34.1