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cdrom_read_toc (ide-cd.c) always reads the TOC using MSF format.  If the
last session of the disk starts beyond block 1152000 (LBA) there's an
overflow in the MSF format and kernel complains:

Unable to identify CD-ROM format.

I reported this bug a while ago (see bug #1930 on bugzilla) and Andy
Polyakov tracked it down.

Read the multi-session TOC in LBA format in order to avoid an overflow
in MSF format when the last session starts beyond block 1152000 (LBA).
Signed-off-by: Luca Tettamanti <kronos@kronoz.cjb.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>