From 9d17f3372306429661d8d44a5cbc0b1209e2ebe5 Mon Sep 17 00:00:00 2001 From: Austin Kim Date: Fri, 1 Apr 2022 09:30:51 +0100 Subject: ARM: 9190/1: kdump: add invalid input check for 'crashkernel=0' Add invalid input check expression when 'crashkernel=0' is specified running kdump. Signed-off-by: Austin Kim Signed-off-by: Russell King (Oracle) --- arch/arm/kernel/setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 284a80c0b6e1..7646d3ade56c 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1004,7 +1004,8 @@ static void __init reserve_crashkernel(void) total_mem = get_total_mem(); ret = parse_crashkernel(boot_command_line, total_mem, &crash_size, &crash_base); - if (ret) + /* invalid value specified or crashkernel=0 */ + if (ret || !crash_size) return; if (crash_base <= 0) { -- cgit v1.2.3