diff options
| -rw-r--r-- | kernel/power/user.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c index 526e8911460a..f83c1876b39c 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -184,6 +184,11 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf, res = PAGE_SIZE - pg_offp; } + if (!data_of(data->handle)) { + res = -EINVAL; + goto unlock; + } + res = simple_write_to_buffer(data_of(data->handle), res, &pg_offp, buf, count); if (res > 0) |