linux-kernel - [PATCH 3.16 201/294] platform/x86: samsung-laptop: Initialize loca variable

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Message-ID: <lsq.1510009382.28273214@decadent.org.uk>
Date:   Mon, 06 Nov 2017 23:03:02 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Geert Uytterhoeven" <geert@...ux-m68k.org>,
        "Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH 3.16 201/294] platform/x86: samsung-laptop: Initialize
 loca variable

3.16.50-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

commit 0d2c95354a3b63256e92d9fb865c08902d2c9b0b upstream.

The variable is used uninitialized which might come into unexpected
behaviour on some Samsung laptops.

Initialize it to 0xffff which seems a proper value for non-supported
feature.

Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/platform/x86/samsung-laptop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1347,9 +1347,9 @@ static int __init samsung_sabi_init(stru
 	const struct sabi_config *config = NULL;
 	const struct sabi_commands *commands;
 	unsigned int ifaceP;
+	int loca = 0xffff;
 	int ret = 0;
 	int i;
-	int loca;
 
 	samsung->f0000_segment = ioremap_nocache(0xf0000, 0xffff);
 	if (!samsung->f0000_segment) {