summaryrefslogtreecommitdiff
path: root/arch/powerpc/kernel/machine_kexec.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/machine_kexec.c')
-rw-r--r--arch/powerpc/kernel/machine_kexec.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index 2694d078741d..9dafd7af39b8 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -186,7 +186,12 @@ void __init reserve_crashkernel(void)
(unsigned long)(crashk_res.start >> 20),
(unsigned long)(memblock_phys_mem_size() >> 20));
- memblock_reserve(crashk_res.start, crash_size);
+ if (!memblock_is_region_memory(crashk_res.start, crash_size) ||
+ memblock_reserve(crashk_res.start, crash_size)) {
+ pr_err("Failed to reserve memory for crashkernel!\n");
+ crashk_res.start = crashk_res.end = 0;
+ return;
+ }
}
int overlaps_crashkernel(unsigned long start, unsigned long size)