Possible error in debugfs/file.c

[land.ho87 at gmail.com]

I'm just reading the kernel source and came across this which doesn't look quite right to me:
616         size_t size = strlen(file->private_data);

strlen is used here when the pointer points to type:
567 struct array_data {
568         void *array;
569         u32 elements;
570 };

I think line 616 should probably be something like:
size_t size = file->private_data.elements*sizeof(u32);

I think strlen would terminate incorrectly on any null byte, and is unnecessary
since the data is already counted.

Is this a legitimate criticism?