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

BugLink: https://bugs.launchpad.net/bugs/1854975
[ 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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/arch/m68k/kernel/uboot.c b/arch/m68k/kernel/uboot.c
index b29c3b241e1bb590eba500918e39e4ce9bc59796..10708287706451e4d7801a1ad334e7523b3cc259 100644 (file)
--- 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;
 }