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-rw-r--r--kernel/params.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/params.c b/kernel/params.c
index 0af9b2c4e56c..bd65d136a470 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -648,6 +648,8 @@ static __modinit int add_sysfs_param(struct module_kobject *mk,
/* Do not allow runtime DAC changes to make param writable. */
if ((kp->perm & (S_IWUSR | S_IWGRP | S_IWOTH)) != 0)
mk->mp->attrs[mk->mp->num].mattr.store = param_attr_store;
+ else
+ mk->mp->attrs[mk->mp->num].mattr.store = NULL;
mk->mp->attrs[mk->mp->num].mattr.attr.name = (char *)name;
mk->mp->attrs[mk->mp->num].mattr.attr.mode = kp->perm;
mk->mp->num++;