diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index c4c9a10c5760e057ef7b019e1013d472a2ccaabb..de525ec0b490b2a9b4a0b3d907f1732074eea1af 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -299,7 +299,7 @@ static void pstore_dump(struct kmsg_dumper *dumper,
 		bool compressed;
 		size_t total_len;
 
-		if (big_oops_buf) {
+		if (big_oops_buf && is_locked) {
 			dst = big_oops_buf;
 			hsize = sprintf(dst, "%s#%d Part%u\n", why,
 							oopscount, part);