From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 7 Jun 2017 13:56:15 +0000 (+0300)
Subject: platform/x86: samsung-laptop: Initialize loca variable
X-Git-Tag: v3.2.95~25
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=615514a2cac10d1b92e3ed06e1c1d884d8c4333a;p=thirdparty%2Fkernel%2Fstable.git

platform/x86: samsung-laptop: Initialize loca variable

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@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index 64e1f2d104ada..7ec43a51f138d 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -601,7 +601,7 @@ static int __init samsung_init(void)
 	struct sabi_retval sretval;
 	unsigned int ifaceP;
 	int i;
-	int loca;
+	int loca = 0xffff;
 	int retval;
 
 	if (efi_enabled(EFI_BOOT))