drivers/cdrom/cdrom.c: relax check on dvd manufacturer value
authorAndrew Morton <akpm@linux-foundation.org>
Tue, 2 Aug 2011 10:43:50 +0000 (12:43 +0200)
committerJens Axboe <jaxboe@fusionio.com>
Tue, 2 Aug 2011 10:43:50 +0000 (12:43 +0200)
commitaec9f377e4f235c47e27fd8a429555dfa2dda342
tree5efa73cf8d0a150a69a66f01e40fb130b35a2bc4
parentddad9ef5826efdfbbdb67b13b46f30e43e46ec3e
drivers/cdrom/cdrom.c: relax check on dvd manufacturer value

The report has an ISO which has a very long manufacturer ID.  It seems
that Linux is wrong, not the ISO maker.

Relax the check for the length of this field: emit a warning and truncate
the incoming data to 2048 bytes rather than rejecting the entire thing.

dvd_manufact.value isn't null-terminated.  I'm not even sure if it's a
string.  The kernel doesn't apepar to use it anyway.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=39062

Reported-by: <ale.goujon@gmail.com>
Tested-by: <ale.goujon@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
drivers/cdrom/cdrom.c