Fixes a possible buffer overflow due to reading more than 8 bytes into an 8
byte long array

Thanks to Perceval Anichini <perceval.anichini@streamvision.fr> for pointing
out the bug.
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Cc: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>