From: Angelo Dureghello <angelo@sysam.it>
Date: Fri, 7 Sep 2018 12:44:25 +0000 (+0200)
Subject: m68k: fix command-line parsing when passed from u-boot
X-Git-Tag: v4.19.87~246
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=92ac0e3249746a852478af8c644aa81657c479ad;p=thirdparty%2Fkernel%2Fstable.git

m68k: fix command-line parsing when passed from u-boot

[ Upstream commit 381fdd62c38344a771aed06adaf14aae65c47454 ]

This patch fixes command_line array zero-terminated
one byte over the end of the array, causing boot to hang.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/m68k/kernel/uboot.c b/arch/m68k/kernel/uboot.c
index b29c3b241e1bb..1070828770645 100644
--- a/arch/m68k/kernel/uboot.c
+++ b/arch/m68k/kernel/uboot.c
@@ -102,5 +102,5 @@ __init void process_uboot_commandline(char *commandp, int size)
 	}
 
 	parse_uboot_commandline(commandp, len);
-	commandp[size - 1] = 0;
+	commandp[len - 1] = 0;
 }