When KEXEC is enabled but crashkernel details are not passed through the
kernel commandline unnecessary resources are requested (start==end==0)
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@xxxxxxxxxx>
---
arch/mips/kernel/setup.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index f66e5ce..0058fea 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -672,6 +672,9 @@ static void __init request_crashkernel(struct resource *res)
{
int ret;
+ if (crashk_res.start == crashk_res.end)
+ return;
+
ret = request_resource(res, &crashk_res);
if (!ret)
pr_info("Reserving %ldMB of memory at %ldMB for crashkernel\n",
--
2.7.4
