From: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
When add crashkernel=2M-256M, kernel don't give any warning.
This is misleading sometimes.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan at oracle.com>
---
kernel/kexec.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 7b08867..0a6d147 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1359,6 +1359,10 @@ static int __init parse_crashkernel_simple(char *cmdline,
if (*cur == '@')
*crash_base = memparse(cur+1, &cur);
+ else if (*cur != ' ' && *cur != '\0') {
+ pr_warning("crashkernel: unrecognized char\n");
+ return -EINVAL;
+ }
return 0;
}
-- 1.7.3
