diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index ff83f80..109333c 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -66,7 +66,7 @@
 
 static ssize_t dlm_id_show(struct dlm_ls *ls, char *buf)
 {
-	return sprintf(buf, "%u\n", ls->ls_global_id);
+	return snprintf(buf, PAGE_SIZE, "%u\n", ls->ls_global_id);
 }
 
 static ssize_t dlm_id_store(struct dlm_ls *ls, const char *buf, size_t len)
@@ -78,12 +78,12 @@
 static ssize_t dlm_recover_status_show(struct dlm_ls *ls, char *buf)
 {
 	uint32_t status = dlm_recover_status(ls);
-	return sprintf(buf, "%x\n", status);
+	return snprintf(buf, PAGE_SIZE, "%x\n", status);
 }
 
 static ssize_t dlm_recover_nodeid_show(struct dlm_ls *ls, char *buf)
 {
-	return sprintf(buf, "%d\n", ls->ls_recover_nodeid);
+	return snprintf(buf, PAGE_SIZE, "%d\n", ls->ls_recover_nodeid);
 }
 
 struct dlm_attr {