The crashkernel=Y,low is an optional command-line option. When it doesn't exist, kernel will try to allocate minimum required memory below 4G automatically. Give it a unique error code to distinguish it from other error scenarios. Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx> --- kernel/crash_core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/crash_core.c b/kernel/crash_core.c index 256cf6db573cd09..4d57c03714f4e13 100644 --- a/kernel/crash_core.c +++ b/kernel/crash_core.c @@ -243,9 +243,8 @@ static int __init __parse_crashkernel(char *cmdline, *crash_base = 0; ck_cmdline = get_last_crashkernel(cmdline, name, suffix); - if (!ck_cmdline) - return -EINVAL; + return -ENOENT; ck_cmdline += strlen(name); -- 2.25.1
