libata: Avoid overflow in ata_tf_read_block() when tf->hba_lbal > 127
Phillip O'Donnell <phillip.odonnell@gmail.com> pointed out that the same
sign extension bug that was fixed in commit ba14a9c2
("libata: Avoid
overflow in ata_tf_to_lba48() when tf->hba_lbal > 127") also appears to
exist in ata_tf_read_block(). Fix this by adding a cast to u64.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -612,7 +612,7 @@ u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev)
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if (tf->flags & ATA_TFLAG_LBA48) {
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block |= (u64)tf->hob_lbah << 40;
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block |= (u64)tf->hob_lbam << 32;
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block |= tf->hob_lbal << 24;
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block |= (u64)tf->hob_lbal << 24;
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} else
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block |= (tf->device & 0xf) << 24;
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