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* Fixed a bug in scsi_periph that prevents accessing block number 0x100000.

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* The blocks beyond that would be potentially read in smaller chunks than
  anticipated, too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26798 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2008-08-04 16:36:02 +00:00
parent 4468706ca3
commit 2c0c5e6c21
1 changed files with 3 additions and 2 deletions
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5
src/add-ons/kernel/generic/scsi_periph/io.c
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@ -82,7 +82,8 @@ periph_read_write(scsi_periph_handle_info *handle, const phys_vecs *vecs,
// don't allow transfer cross the 24 bit address limit
// (I'm not sure whether this is allowed, but this way we
// are sure to not ask for trouble)
num_blocks = min(num_blocks, 0x100000 - pos);
if (pos < 0x100000)
num_blocks = min(num_blocks, 0x100000 - pos);
}
num_bytes = num_blocks * block_size;
@ -226,7 +227,7 @@ raw_command(scsi_periph_device_info *device, raw_device_command *cmd)
request->flags = 0;
if (cmd->flags & B_RAW_DEVICE_DATA_IN)
if (cmd->flags & B_RAW_DEVICE_DATA_IN)
request->flags |= SCSI_DIR_IN;
else if (cmd->data_length)
request->flags |= SCSI_DIR_OUT;