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Fix bogus copying of data into userspace when HIDIOCGRDESC is issued. HID-transport layer makes sure that dev->hid->rdesc is not larger than HID_MAX_DESCRIPTOR_SIZE. Noticed-by: Al Viro <[email protected]> Signed-off-by: Jiri Kosina <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>