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-rw-r--r--kernel/power/user.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 75c959de4b29..abd225550271 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -186,6 +186,11 @@ 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)