diff options
| author | Brian King <brking@linux.vnet.ibm.com> | 2007-01-17 12:32:12 -0600 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-01-24 02:04:34 -0500 |
| commit | 7a801184fa480e11e6431f184a5bdf31f63326fb (patch) | |
| tree | b68cc5daee76cc564f7f48cc038f52be4a855be7 /drivers/ata | |
| parent | 07c53dac4904206a50dd7c87adabbb1acff903fb (diff) | |
| download | op-kernel-dev-7a801184fa480e11e6431f184a5bdf31f63326fb.zip op-kernel-dev-7a801184fa480e11e6431f184a5bdf31f63326fb.tar.gz | |
libata: Fixup n_elem initialization
Fixup the inialization of qc->n_elem. It currently gets
initialized to 1 for commands that do not transfer any data.
Fix this by initializing n_elem to 0 and only setting to 1
in ata_scsi_qc_new when there is data to transfer. This fixes
some problems seen with SATA devices attached to ipr adapters.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 836947d..7cc5a4a 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -372,7 +372,7 @@ struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev, if (cmd->use_sg) { qc->__sg = (struct scatterlist *) cmd->request_buffer; qc->n_elem = cmd->use_sg; - } else { + } else if (cmd->request_bufflen) { qc->__sg = &qc->sgent; qc->n_elem = 1; } |
