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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2007-10-29 23:21:37 +0300 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-11-05 06:53:15 +0300 |
| commit | 17bd9a2f4c35de29d2539a2ff6851d61be281e25 (patch) | |
| tree | 9119dc563f702644c4ca889a942f49be6a2fd18a | |
| parent | b55d1b1814c52463c11707f53dbdc223e09b2924 (diff) | |
| download | linux-17bd9a2f4c35de29d2539a2ff6851d61be281e25.tar.xz | |
libata and bogus LBA48 drives
A colleague noticed recent versions of Ubuntu no longer detect his 80 GB
ST380020ACE drive. This drive is special in that it advertises LBA48 support,
but has the lba_capacity_2 field set to zero (cfr.
http://lkml.org/lkml/2004/3/30/163).
Upon closer look, libata indeed doesn't seem to handle this case yet.
Below is an (untested) fix.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | include/linux/ata.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index 61535e72834d..304825b1c977 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -425,6 +425,8 @@ static inline int ata_id_has_lba48(const u16 *id) { if ((id[83] & 0xC000) != 0x4000) return 0; + if (!ata_id_u64(id, 100)) + return 0; return id[83] & (1 << 10); } |